Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

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Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students
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Transcript of Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Page 1: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles Flashcards

Origins and Insertions

Intended for entry level anatomy students

Page 2: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles Flashcards

Origins and Insertions

Intended to be viewed as full-screen….

select full-screen, and use “Page Down” to scroll through individual “flashcards” !

Page 3: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles FlashcardsOrigins and Insertions

Note: Learn origins and insertions of each muscle well.

This is why the bony landmarks are so important.

Do not memorize the function of muscles !

Muscles contract only linearly.

Thus, to know the origin and insertion of a muscle is to know the function.

Page 4: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles FlashcardsOrigins and Insertions

Note: Every muscle has a multitude of actions.

Listed are the primary actions of each muscle !

Page 5: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles FlashcardsOrigins and Insertions

Presented in Three Parts:

I – Muscles of Face, head, neck, thorax, and abdomen

II – Muscles of the upper extremity

III – Muscles of the lower extremity

Page 6: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles FlashcardsOrigins and Insertions

Each card is a set of three:

The first asks to identify the muscle.

The next provides the clues.

The third gives the name of the muscle.

Page 7: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

1. Identify this muscle and its action !

Page 8: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

1. Identify this muscle and its action !

• Origin: margin of the orbit

• Insertion: eyelid & skin of face

• Action: closes eye, blink

• Innervation: Facial nerve (CN VII)

Orbicularis Oculi

Page 9: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

2. Identify this muscle and its action !

Page 10: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

2. Identify this muscle and its action !

• Origin: Maxilla and mandible

• Insertion: Fibers of the lips

• Action: Compresses lips

• Innervation: Facial nerve (CN VII)

Orbicularis oris

Page 11: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

3. Identify this muscle and its action !

Page 12: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

3. Identify this muscle and its action !

• Origin: Zygomatic bone

• Insertion: mandible

• Action: Elevates mandible, closes jaws, chewing (“mastication”)

• Innervation: Mandibular branch of trigeminal nerve (CN V3)

Page 13: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

3. Identify this muscle and its action !

• Origin: Zygomatic bone

• Insertion: mandible

• Action: Elevates mandible, closes jaws, chewing (“mastication”)

• Innervation: Mandibular branch of trigeminal nerve (CN V3)

Masseter

Page 14: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

4. Identify this muscle and its action !

Page 15: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

4. Identify this muscle and its action !

• Origin: manubrium and clavicle• Insertion: Mastoid process of temporal bone• Action: Flexes head at neck (both right and left muscles working together),

or bends neck toward shoulder and turns face away (one-side only)• Innervation: Spinal Accessory nerve (CN XI)

Page 16: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

4. Identify this muscle and its action !

• Origin: manubrium and clavicle• Insertion: Mastoid process of temporal bone• Action: Flexes head at neck (both right and left muscles working together),

or bends neck toward shoulder and turns face away (one-side only)• Innervation: Spinal Accessory nerve (CN XI)

Sternocleidomastoid

Page 17: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

5. Identify this muscle and its action !

Page 18: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

5. Identify this muscle and its action !

• Origin: Inferior clavicle and fascia of chest• Insertion: Inferior surface of mandible• Action: Draws corners of mouth inferiorly and tenses skin of the neck by

drawing it superiorly• Innervation: Cervical Branch of Facial Nerve (CN VII)

Page 19: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

5. Identify this muscle and its action !

• Origin: Inferior clavicle and fascia of chest• Insertion: Inferior surface of mandible• Action: Draws corners of mouth inferiorly and tenses skin of the neck by

drawing it superiorly• Innervation: Cervical Branch of Facial Nerve (CN VII)

Platysma

Page 20: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

6. Identify this muscle and its action !

Page 21: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

6. Identify this muscle and its action !

• Origin: Inferior border of rib• Insertion: Superior border of inferior rib• Action: Elevates ribs• Innervation: Intercostal nerves

Page 22: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

6. Identify this muscle and its action !

• Origin: Inferior border of rib• Insertion: Superior border of inferior rib• Action: Elevates ribs• Innervation: Intercostal nerves

Hint: External intercostals run in the same direction as your fingers when you put your hands in your pockets

External Intercostals

Page 23: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

7. Identify this muscle and its action !

Page 24: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

7. Identify this muscle and its action !

• Origin: Superior border of inferior rib• Insertion: Inferior border of superior rib• Action: Depresses ribs• Innervation: Intercostal nerves

Page 25: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

7. Identify this muscle and its action !

• Origin: Superior border of inferior rib• Insertion: Inferior border of superior rib• Action: Depresses ribs• Innervation: Intercostal nerves

Hint: Internal intercostals run in the direction that your fingers run when you place your hands on your heart (i.e. deep and perpendicular to external intercostal muscles)

Internal Intercostals

Page 26: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Origin: originates on the inferior border of the rib cage

Insertion: inserts on the central tendon.

Action: Flattens when it contracts to increase area of thorax and inflate lungs.

Innervation: Phrenic nerve (C3,4,5)

8. Identify this muscle and its action !

Page 27: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Respiratory Diaphragm

Origin: originates on the inferior border of the rib cage

Insertion: inserts on the central tendon.

Action: Flattens when it contracts to increase area of thorax and inflate lungs.

Innervation: Phrenic nerve (C3,4,5)

8. Identify this muscle and its action !

Page 28: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

9. Identify this muscle and its action !

Page 29: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

9. Identify this muscle and its action !

• Origin: External, inferior borders of ribs• Insertion: linea alba and iliac crest• Action: Flex trunk (spine) at hip, compress abdomen• Innervation: Intercostal nerves

Note that the muscle fibers run in the direction that your fingers run when you put your hands in your pockets.

Page 30: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

9. Identify this muscle and its action !

• Origin: External, inferior borders of ribs• Insertion: linea alba and iliac crest• Action: Flex trunk (spine) at hip, compress abdomen• Innervation: Intercostal nerves

Note that the muscle fibers run in the direction that your fingers run when you put your hands in your pockets.

External Oblique Abdominus

Page 31: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

10. Identify this muscle and its action !

Page 32: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

10. Identify this muscle and its action !

• Origin: Pubis

• Insertion: costal cartilages and xiphoid process

• Action: Flex trunk (spine) at hip, compress abdomen

• Innervation: Intercostal nerves

Page 33: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

10. Identify this muscle and its action !

• Origin: Pubis

• Insertion: costal cartilages and xiphoid process

• Action: Flex trunk (spine) at hip, compress abdomen

• Innervation: Intercostal nerves

Rectus abdominus

Page 34: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles FlashcardsOrigins and Insertions

Presented in Three Parts:

I – Muscles of Face, head, neck, thorax, and abdomen

II – Muscles of the upper extremity

III – Muscles of the lower extremity

Page 35: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

11. Identify this muscle and its action !

Page 36: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

11. Identify this muscle and its action !

• Origin: Occipital bone and spinous processes of thoracic vertebrae• Insertion: Clavicle and scapula• Action: elevation of scapulae• Innervation: Spinal Accessory nerve (CN XI)

Page 37: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

11. Identify this muscle and its action !

• Origin: Occipital bone and spinous processes of thoracic vertebrae• Insertion: Clavicle and scapula• Action: elevation of scapulae• Innervation: Spinal Accessory nerve (CN XI)

Trapezius

Page 38: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

12. Identify this muscle and its action !

Page 39: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

12. Identify this muscle and its action !

• Origin: vertebral spinous processes, iliac crest, and ribs

• Insertion: Intertubercular groove and lesser tubercle (humerus

(common insertion with teres major muscle).

• Action: Adduction of arm at shoulder

• Innervation: spinal nerves (C6-C8)

Page 40: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

12. Identify this muscle and its action !

• Origin: vertebral spinous processes, iliac crest, and ribs

• Insertion: Intertubercular groove and lesser tubercle of humerus

(common insertion with teres major muscle).

• Action: Adduction of arm at shoulder

• Innervation: spinal nerves (C6-C8)

Latissimus dorsi

Page 41: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior view

I13. Identify this muscle and its action !

Page 42: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior view

I13. Identify this muscle and its action !

• Origin: Subscapular fossa

• Insertion: Lesser tubercle (humerus)

• Action: Medial rotation of shoulder

• Innervation: spinal nerve from posterior cord of brachial plexus

Page 43: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior view

I13. Identify this muscle and its action !

• Origin: Subscapular fossa

• Insertion: Lesser tubercle (humerus)

• Action: Medial rotation of arm at shoulder

• Innervation: spinal nerve from posterior cord of brachial plexus

Subscapularis(1 of 4 rotator cuff muscles)

Page 44: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewposterior view

14. Identify this muscle and its action !

Page 45: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewposterior view

14. Identify this muscle and its action !

• Origin: Supraspinous fossa

• Insertion: Greater tubercle

• Action: abduct arm at shoulder

• Innervation: spinal nerve from brachial plexus

Page 46: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewposterior view

14. Identify this muscle and its action !

• Origin: Supraspinous fossa

• Insertion: Greater tubercle (humerus)

• Action: abduct arm at shoulder

• Innervation: spinal nerve from brachial plexus

Supraspinatus(1 of 4 rotator cuff muscles)

Page 47: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

15. Identify this muscle and its action !

Anterior viewposterior view

Page 48: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

15. Identify this muscle and its action !

Anterior viewposterior view

• Origin: Infraspinous fossa

• Insertion: Greater tubercle (humerus)

• Action: Lateral rotation of arm at shoulder

• Innervation: spinal nerve from brachial plexus

Page 49: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewposterior view

15. Identify this muscle and its action !

• Origin: Infraspinous fossa

• Insertion: Greater tubercle (humerus)

• Action: Lateral rotation of arm at shoulder

• Innervation: spinal nerve from brachial plexus

Infraspinatus(1 of 4 rotator cuff muscles)

Page 50: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

posterior view

16. Identify this muscle and its action !

Page 51: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

posterior view

16. Identify this muscle and its action !

• Origin: lateral border of scapula

• Insertion: Greater tubercle (humerus)

• Action: Laterally rotates arm at shoulder

• Innervation: Axillary nerve

Page 52: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

posterior view

16. Identify this muscle and its action !

• Origin: lateral border of scapula

• Insertion: Greater tubercle (humerus)

• Action: Laterally rotates arm at shoulder

• Innervation: Axillary nerve

Teres Minor(1 of 4 rotator cuff muscles)

Page 53: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewposterior view

17. Identify this muscle and its action !

Page 54: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewposterior view

17. Identify this muscle and its action !

• Origin: clavicle and scapula

• Insertion: deltoid tuberosity (humerus)

• Action: ab-duct arm at shoulder

(similar to supraspinatus)

• Innervation: Axillary nerve

Page 55: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewposterior view

17. Identify this muscle and its action !

• Origin: clavicle and scapula

• Insertion: deltoid tuberosity (humerus)

• Action: ab-duct arm at shoulder

(similar to supraspinatus)

• Innervation: Axillary nerve

Deltoid

Page 56: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

18. Identify this muscle and its action !

Page 57: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

18. Identify this muscle and its action !

• Origin: clavicle, costal cartilage, and sternum

• Insertion: Greater tubercle

• Action: flex arm at shoulder

• Innervation: Pectoral nerves (spinal nerves from brachial plexus)

Page 58: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

18. Identify this muscle and its action !

• Origin: clavicle, costal cartilage, and sternum

• Insertion: Greater tubercle

• Action: flex arm at shoulder

• Innervation: Pectoral nerves (spinal nerves from brachial plexus)

Pectoralis major

Page 59: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

19. Identify this muscle and its action !

Page 60: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

19. Identify this muscle and its action !

• Origin: Long Head: Supraglenoid tubercle (scapula)

Short Head: Coracoid process (scapula)• Insertion: Radial tuberosity• Action: flex forearm at elbow and supinate forearm/ hand at elbow

(a two-joint muscle)• Innervation: Musculocutaneous nerve

Page 61: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

19. Identify this muscle and its action !

• Origin: Long Head: Supraglenoid tubercle (scapula)

Short Head: Coracoid process (scapula)• Insertion: Radial tuberosity• Action: flex forearm at elbow and supinate forearm/ hand at elbow

(a two-joint muscle)• Innervation: Musculocutaneous nerve

Biceps brachii

Page 62: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior view

Posterior view

20. Identify this muscle and its action !

Page 63: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewPosterior view20. Identify this muscle and its action !

• Origin of Long Head: Infraglenoid tubercle (scapula)

Medial Head: Posterior, lateral humerus

Lateral Head: Posterior, medial humerus

• Insertion: Olecranon (ulna)

• Action: Extend forearm at elbow

• Innervation: Radial nerve

Page 64: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anterior viewPosterior view20. Identify this muscle and its action !

• Origin of Long Head: Infraglenoid tubercle (scapula)

Medial Head: Posterior, lateral humerus

Lateral Head: Posterior, medial humerus

• Insertion: Olecranon (ulna)

• Action: Extend forearm at elbow

• Innervation: Radial nerve

Triceps brachii

Page 65: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

21. Identify this muscle and its action !

Page 66: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

21. Identify this muscle and its action !

• Origin: Lateral epicondyle of humerus

• Insertion: Base of fifth metacarpal

• Action: Extend and adduct hand at the wrist

• Innervation: Posterior Interosseus Nerve, a branch of the Radial Nerve

Page 67: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

21. Identify this muscle and its action !

• Origin: Lateral epicondyle of humerus

• Insertion: Base of fifth metacarpal

• Action: Extend and adduct hand at the wrist

• Innervation: Posterior Interosseus Nerve, a branch of the Radial Nerve

Extensor Carpi Ulnaris

Page 68: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

22. Identify this muscle and its action !

Page 69: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

22. Identify this muscle and its action !

• Origin: Medial epicondyle of humerus

• Insertion: Base of second and third metacarpals

• Action: Flex and abduct hand at the wrist

• Innervation: Median Nerve

Page 70: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

22. Identify this muscle and its action !

• Origin: Medial epicondyle of humerus

• Insertion: Base of second and third metacarpals

• Action: Flex and abduct hand at the wrist

• Innervation: Median Nerve

Flexor Carpi Radialis

Page 71: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Anatomy Muscles FlashcardsOrigins and Insertions

Presented in Three Parts:

I – Muscles of Face, head, neck, thorax, and abdomen

II – Muscles of the upper extremity

III – Muscles of the lower extremity

Page 72: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

23. Identify this muscle and its action !

Posterior view

Page 73: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Posterior view• Origin: iliac crest, sacrum

• Insertion: iliotibial tract, linea aspera

• Action: extension of thigh at hip and lateral rotation of thigh

• Innervation: Inferior gluteal nerve

23. Identify this muscle and its action !

Page 74: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Posterior view

Gluteus Maximus

23. Identify this muscle and its action !

• Origin: iliac crest, sacrum

• Insertion: iliotibial tract, linea aspera

• Action: extension of thigh at hip and lateral rotation of thigh

• Innervation: Inferior gluteal nerve

Page 75: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

24. Identify this muscle and its action !

Page 76: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

• Origin: iliac crest

• Insertion: Greater trochanter

• Action: Abduction and medial rotation of thigh at the hip

• Innervation: Superior gluteal nerve

24. Identify this muscle and its action !

Page 77: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Gluteus Medius

24. Identify this muscle and its action !

• Origin: iliac crest

• Insertion: Greater trochanter

• Action: Abduction and medial rotation of thigh at the hip

• Innervation: Superior gluteal nerve

Page 78: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

25. Identify this muscle and its action !

Page 79: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

• Origin: Lateral surface of ilium

• Insertion: Greater trochanter

• Action: Abduction, medial rotation at hip

• Innervation: Superior gluteal nerve

25. Identify this muscle and its action !

Page 80: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

• Origin: Lateral surface of ilium

• Insertion: Greater trochanter

• Action: Abduction, medial rotation at hip

• Innervation: Superior gluteal nerve

Gluteus Minimus

25. Identify this muscle and its action !

Page 81: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

26. Identify this muscle and its action !

Posterior view

Page 82: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

26. Identify this muscle and its action !

Posterior view• Origin: ischial tuberosity

• Insertion: Medial condyle of tibia

• Action: flex leg at knee

• Innervation: Tibial nerve

Page 83: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

26. Identify this muscle and its action !

Posterior view• Origin: ischial tuberosity

• Insertion: Medial condyle of tibia

• Action: flex leg at knee

• Innervation: Tibial nerve

Semimembranosus

Page 84: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

27. Identify this muscle and its action !

Page 85: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

27. Identify this muscle and its action !

• Origin: Ischial tuberosity

• Insertion: Medial surface of superior tibia,

via pes anserinus

• Action: flex leg at knee

• Innervation: Tibial nerve

Page 86: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

27. Identify this muscle and its action !

• Origin: Ischial tuberosity

• Insertion: Medial surface of superior tibia,

via pes anserinus

• Action: flex leg at knee

• Innervation: Tibial nerve

Semitendinosus

Page 87: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

28. Identify this muscle and its action !

Page 88: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

28. Identify this muscle and its action !

• Origin: ischial tuberosity

• Insertion: Lateral condyle of tibia

• Action: flex leg at knee

• Innervation: Tibial nerve

Page 89: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

28. Identify this muscle and its action !

• Origin: ischial tuberosity

• Insertion: Lateral condyle of tibia

• Action: flex leg at knee

• Innervation: Tibial nerve

Biceps Femoris, Long-Head

Page 90: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

29. Identify this muscle and its action !

Page 91: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

29. Identify this muscle and its action !

• Origin: linea aspera

• Insertion: Lateral condyle of tibia

• Action: flex leg at knee

• Innervation: common fibular nerve

Page 92: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

29. Identify this muscle and its action !

• Origin: linea aspera

• Insertion: Lateral condyle of tibia

• Action: flex leg at knee

• Innervation: common fibular nerve

Biceps Femoris, Short-Head

Page 93: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

30. Identify this muscle and its action !

Page 94: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

30. Identify this muscle and its action !

• Origin: Anterior superior iliac spine

• Insertion: Medial side of superior tibia,

via pes anserinus

• Action: flex thigh at hip & flex leg at knee

• Innervation: Femoral nerve

Page 95: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

30. Identify this muscle and its action !

• Origin: Anterior superior iliac spine

• Insertion: Medial side of superior tibia,

via pes anserinus

• Action: flex thigh at hip & flex leg at knee

• Innervation: Femoral nerve

Sartorius

Page 96: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

31. Identify this muscle and its action !

Page 97: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

31. Identify this muscle and its action !

• Origin: Anterior inferior iliac spine

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Flex thigh at hip & extend leg at knee

• Innervation: Femoral nerve

Page 98: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

31. Identify this muscle and its action !

• Origin: Anterior inferior iliac spine

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Flex thigh at hip & extend leg at knee

• Innervation: Femoral nerve

Rectus Femoris

Page 99: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

32. Identify this muscle and its action !

Page 100: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

32. Identify this muscle and its action !

• Origin: Intertrochanteric line

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Extend leg at knee

• Innervation: Femoral nerve

Page 101: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

32. Identify this muscle and its action !

• Origin: Intertrochanteric line

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Extend leg at knee

• Innervation: Femoral nerve

Vastus Medialis

Page 102: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

33. Identify this muscle and its action !

Page 103: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

33. Identify this muscle and its action !

• Origin: Greater trochanter

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Extend leg at knee

• Innervation: Femoral nerve

Page 104: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

33. Identify this muscle and its action !

• Origin: Greater trochanter

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Extend leg at knee

• Innervation: Femoral nerve

Vastus Lateralis

Page 105: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

34. Identify this muscle and its action !

Page 106: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

34. Identify this muscle and its action !

• Origin: Anterolateral surface of femur

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Extend leg at knee

• Innervation: Femoral nerve

Page 107: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

34. Identify this muscle and its action !

• Origin: Anterolateral surface of femur

• Insertion: Tibial tuberosity via patellar ligament, part of quadriceps femoris

• Action: Extend leg at knee

• Innervation: Femoral nerve

Vastus Intermedius

Page 108: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

35. Identify this muscle and its action !

Page 109: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

35. Identify this muscle and its action !

• Origin: Femoral condyles

• Insertion: Calcaneus, via calcaneal tendon

• Action: Plantar flexion of foot at ankle

• Innervation: Tibial nerve

Page 110: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

35. Identify this muscle and its action !

• Origin: Femoral condyles

• Insertion: Calcaneus, via calcaneal tendon

• Action: Plantar flexion of foot at ankle

• Innervation: Tibial nerve

Gastrocnemius

Page 111: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

36. Identify this muscle and its action !

Page 112: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

36. Identify this muscle and its action !

• Origin: tibia

• Insertion: 1st metatarsal

• Action: Extension (dorsiflexion) of foot at ankle, inversion of foot

• Innervation: Deep fibular nerve

Page 113: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

36. Identify this muscle and its action !

• Origin: tibia

• Insertion: 1st metatarsal

• Action: Extension (dorsiflexion) of foot at ankle, inversion of foot

• Innervation: Deep fibular nerve

Tibialis Anterior

Page 114: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

Structures that you should study!

• Flexor and extensor retinacula (of wrist and ankle)Without these, muscle tendons would “bow-string” and

make it very difficult to perform their function.

Page 115: Anatomy Muscles Flashcards Origins and Insertions Intended for entry level anatomy students.

This project was made possible by:

Rachel Uppgaard (Human Anatomy TA, 2007- present)

and artwork by

Jimmy Chue-mai Yang (TA, 2005-2006)