Skeletal & Muscle Unit. Notes How many bones does the human skeleton contain?
WARM UP 1/20 1. How many bones do we have in our body? 2. How many in our head? 3. Name as many...
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Transcript of WARM UP 1/20 1. How many bones do we have in our body? 2. How many in our head? 3. Name as many...
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WARM UP 1/20WARM UP 1/20
1. How many bones do we have in our body?
2. How many in our head?
3. Name as many bones as you know.
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Ch. 7 : 1/30Ch. 7 : 1/30
Intro to BONES: skull
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206 total bones in the adult 206 total bones in the adult bodybody
Children – around 450
* due to some bones not yet fused
EX: - wrist
- ankle
- pelvis
- skull
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CHILD’s SKULLCHILD’s SKULL
Fontanels – areas where the major skull bones have not fused together yet
AKA “soft spots”
Purpose: so skull can be flexible for birth
(solid after about 18 months)
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2 Major Skeletal regions:2 Major Skeletal regions:
1. AXIAL – head neck and torso (80)
2. APPENDICULAR – arms and legs (126)
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AXIALAXIAL
SKULL – 28 bones total
Cranium (8)
Face (14)
Ear (6)
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SKULL FEATURESSKULL FEATURES
SUTURES – immovable joints between skull bones
SINUS – cavity or space
MEATUS – tube-shaped opening
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FORAMEN – hole (for blood vessels)
* foramen magnum – hole at bottom of skull, where spinal cord attaches to brain.
PROCESS – projection (sticking out)
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SKULL BONE LABELINGSKULL BONE LABELING
FRONT VIEW
1. Suture
2. Parietal
3. Sphenoid
4. Nasal
5. Ethmoid
6. zygomatic
7. Mastoid process
8. Frontal
9. Maxilla
10.Mandible
11.Supraorbital foramen
12.Orbital foramen
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13. Lacrimal
14. Infraorbital foramen
15. SKIP
16. Vomer (nasal septum)
17. Mental foramen
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SIDE VIEWSIDE VIEW
1. Suture
2. Suture
3. Parietal
4. Occipital
5. Auditory meatus
6. Mastoid process
7. Styloid process
8. temporal
9. Sphenoid
10. Zygomatic
11. Mandible
12. Suture
13. Frontal
14. Lacrimal
15. SKIP
16. nasal
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17. Ethmoid
18. Maxilla
19. Mental foramen
20. Zygomatic process
EAR bones
Malleus (hammer)
Incus (anvil)
Stapes (stirrup)
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ANTERIOR (front)ANTERIOR (front)
1. Cranium or skull (28)2. Cervical vertebrae (7)3. Clavicle4. Scapula5. Sternum (3)6. Humerus7. Rib (24)8. Ulna9. Radius10. Ilium11. Ischium12. Carpals (16 total)
13. Metacarpals (10 total)14. Phalanges (28 total)15. Pubic16. Femur17. Patella18. Tibia19. Fibula20. Tarsal21. Metatarsal (10 total)22. Phalanges (28 total)23. Sacrum24. coccyx
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POSTERIOR (back)POSTERIOR (back)
1. Scapula2. Humerus3. Ulna4. Radius5. SKIP6. Pubic7. Femur8. Fibula9. Tibia10. Calcaneous11. cranium
12. Cervical vertebrae13. Clavical14. Thoracic vertebrae (12)15. olecranal16. Lumbar vertebrae (5)17. Ilium18. Sacrum19. Coccyx20. Carpals21. Metacarpals22. phalanges
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1. Neck bones2. Shoulder blade3. Collar bone4. Tailbone5. Breastbone6. Upper leg7. Shin 8. Knee9. Wrists10. Hand bones11. Bone separating the nose
Fingers and toesAnklesFeet bonesHip boneUpper arm boneBone to pinkyBone to thumbElbowMiddle back bonesLower back bonesHeel bone 2 bones on side of head
Lower jaw bone
Forehead bone
Cheek bone
Upper jaw bone
Back of head bone
Top of head bone
Butt bone
Nose bone
Bone behind eye
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SKULL BONES1. Frontal
2. Sphenoid
3. Nasal
4. Zygomatic arch
5. Maxilla
6. Mandible
7. Mental foramen
8. Nasal septum
9. Infraorbital foramen
10. Orbital
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11. Parietal
12. Suture
13. Occipital
14. Mastoid process
15. Styloid process
16. Zygomatic process
17.Temporal
18.Sphenoid
19.Mandible
20.Mental foramen
21.Maxilla