Copyright © 2010 Pearson Education, Inc. THE MUSCULAR SYSTEM (ANATOMY) CHAPTER # 10(c)

download Copyright © 2010 Pearson Education, Inc. THE MUSCULAR SYSTEM (ANATOMY) CHAPTER # 10(c)

of 45

  • date post

    16-Dec-2015
  • Category

    Documents

  • view

    215
  • download

    3

Embed Size (px)

Transcript of Copyright © 2010 Pearson Education, Inc. THE MUSCULAR SYSTEM (ANATOMY) CHAPTER # 10(c)

  • Slide 1
  • Copyright 2010 Pearson Education, Inc. THE MUSCULAR SYSTEM (ANATOMY) CHAPTER # 10(c)
  • Slide 2
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Shoulder Joint Nine muscles cross the shoulder joint to insert on and move the humerus
  • Slide 3
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Shoulder Joint Some originate off the scapula; others originate off the axial skeleton Three are prime movers of the arm Pectoralis major Latissimus dorsi Deltoid Actions include flexion, extension, adduction, abduction, and rotation of humerus
  • Slide 4
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Shoulder Joint PLAY A&P Flix: Deltoid PLAY A&P Flix: Latissimus dorsi PLAY A&P Flix: Pectoralis major
  • Slide 5
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Shoulder Joint Four muscles are rotator cuff muscles Supraspinatus Infraspinatus Teres minor Subscapularis Reinforce the capsule of the shoulder Act as synergists and fixators Two additional muscles are synergists: coracobrachialis and teres major
  • Slide 6
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Shoulder Joint PLAY A&P Flix: Movement from the rotator cuff muscles (a) PLAY A&P Flix: Muscles that cross the glenohumeral joint PLAY A&P Flix: Movement from the rotator cuff muscles (b) PLAY A&P Flix: Teres Major
  • Slide 7
  • Copyright 2010 Pearson Education, Inc. Rotator Cuff Anatomy and Function PLAY A&P Flix: Supraspinatus PLAY A&P Flix: Subscapularis PLAY A&P Flix: Infraspinatus PLAY A&P Flix: Teres minor PLAY A&P Flix: Rotator cuff muscles
  • Slide 8
  • Copyright 2010 Pearson Education, Inc. Figure 10.14a Clavicle Deltoid Sternum Pectoralis major Lateral head Long head Medial head Coracobrachialis Triceps brachii: Biceps brachii Brachialis Brachioradialis (a) Anterior view
  • Slide 9
  • Copyright 2010 Pearson Education, Inc. Rotator Cuff Anatomy and Function PLAY A&P Flix: Axial muscles of the glenohumeral joint (a) PLAY A&P Flix: Scapular muscles of the glenohumeral joint (a)
  • Slide 10
  • Copyright 2010 Pearson Education, Inc. Figure 10.14b Supraspinatus* Spine of scapula (b) Posterior view Deltoid (cut) Greater tubercle of humerus Infraspinatus* Teres minor* Teres major Triceps brachii: Latissimus dorsi Humerus Olecranon process of ulna Lateral head Long head Anconeus * Rotator cuff muscles
  • Slide 11
  • Copyright 2010 Pearson Education, Inc. Rotator Cuff Anatomy and Function PLAY A&P Flix: Scapular muscles of the glenohumeral joint (b) PLAY A&P Flix: Axial muscles of the glenohumeral joint (b)
  • Slide 12
  • Copyright 2010 Pearson Education, Inc. Table 10.12 Part 1
  • Slide 13
  • Copyright 2010 Pearson Education, Inc. PLAY A&P Flix: Movement at the glenohumeral joint (a) PLAY A&P Flix: Movement at the glenohumeral joint: An overview PLAY A&P Flix: Movement at the glenohumeral joint (b) Movement at the Glenohumeral Joint
  • Slide 14
  • Copyright 2010 Pearson Education, Inc. PLAY A&P Flix: Muscles of the elbow joint (a) PLAY A&P Flix: The elbow joint and forearm: An overview Muscles Crossing the Elbow Joint Anterior flexor muscles Brachialis and biceps brachiichief forearm flexors Brachioradialissynergist and stabilizer
  • Slide 15
  • Copyright 2010 Pearson Education, Inc. Figure 10.14a Clavicle Deltoid Sternum Pectoralis major Lateral head Long head Medial head Coracobrachialis Triceps brachii: Biceps brachii Brachialis Brachioradialis (a) Anterior view
  • Slide 16
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Elbow Joint PLAY A&P Flix: Biceps brachii PLAY A&P Flix: Muscles of the elbow joint (b) PLAY A&P Flix: Brachialis PLAY A&P Flix: Brachioradialis
  • Slide 17
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Elbow Joint Posterior extensor muscles Triceps brachiiprime mover of forearm extension Anconeusweak synergist
  • Slide 18
  • Copyright 2010 Pearson Education, Inc. Figure 10.14b Supraspinatus* Spine of scapula (b) Posterior view Deltoid (cut) Greater tubercle of humerus Infraspinatus* Teres minor* Teres major Triceps brachii: Latissimus dorsi Humerus Olecranon process of ulna Lateral head Long head Anconeus * Rotator cuff muscles
  • Slide 19
  • Copyright 2010 Pearson Education, Inc. Muscles Crossing the Elbow Joint PLAY A&P Flix: Triceps brachii PLAY A&P Flix: Muscles of the elbow joint (c)
  • Slide 20
  • Copyright 2010 Pearson Education, Inc. Figure 10.17a PLAY A&P Flix: Movement at the elbow joint Triceps brachii Lateral head Humerus Long head Medial head (a) Brachialis Short head Long head (a) Muscles of the arm Extensors Flexors Others Posterior compartment of arm (extends elbow); innervation: radial nerve Biceps brachii Anterior compartment of arm (flexes elbow); innervation: musculocutaneous nerve
  • Slide 21
  • Copyright 2010 Pearson Education, Inc. Table 10.12 Part 2
  • Slide 22
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm Actions: movements of the wrist, hand, and fingers Most anterior muscles are flexors and insert via the flexor retinaculum Most posterior muscles are extensors and insert via the extensor retinaculum PLAY A&P Flix: Muscles that act on the wrist and fingers: An overview
  • Slide 23
  • Copyright 2010 Pearson Education, Inc. PLAY A&P Flix: Muscles of the forearm (a) Muscles of the Forearm Some forearm muscles act to produce pronation and supination of the forearm
  • Slide 24
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm Pronators: pronator teres and pronator quadratus Supinator: a synergist with the biceps brachii PLAY A&P Flix: Pronator teres PLAY A&P Flix: Muscles of the forearm (c) PLAY A&P Flix: Muscles of the forearm (b) PLAY A&P Flix: Supinator
  • Slide 25
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm: Anterior Compartment Flexors Flexor carpi radialis Palmaris longus Flexor carpi ulnaris Flexor digitorum muscles (superficialis and profundus) Flexor pollicis longus PLAY A&P Flix: Carpal tunnel
  • Slide 26
  • Copyright 2010 Pearson Education, Inc. Figure 10.15a Biceps brachii Tendon of biceps brachii Pronator teres Brachioradialis Extensor carpi radialis longus Flexor pollicis longus Pronator quadratus Flexor retinaculum Medial head of triceps brachii Medial epicondyle of humerus Flexor carpi radialis Palmar aponeurosis Superficial transverse ligament of palm Palmaris longus Flexor carpi ulnaris Flexor digitorum superficialis (a)
  • Slide 27
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm: Anterior Compartment PLAY A&P Flix: Flexor carpi ulnaris PLAY A&P Flix: Flexor carpi radialis PLAY A&P Flix: Anterior Muscles of the wrist and fingers (b) PLAY A&P Flix: Flexor digitorum superificalis
  • Slide 28
  • Copyright 2010 Pearson Education, Inc. Figure 10.15c Supinator Tendon of flexor carpi ulnaris (cut) Tendon of flexor digitorum profundus Flexor pollicis longus Thenar muscles of thumb Tendon of flexor pollicis longus Lumbricals Tendon of flexor digitorum superficialis (cut) Pronator quadratus Flexor digitorum profundus (c)
  • Slide 29
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm: Anterior Compartment PLAY A&P Flix: Anterior Muscles of the wrist and fingers (a)
  • Slide 30
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm: Posterior Compartment Extensors Extensor carpi radialis longus and brevis Extensor digitorum Extensor carpi ulnaris Extensor pollicis brevis and longus Extensor indicis Abductor pollicis longus
  • Slide 31
  • Copyright 2010 Pearson Education, Inc. Figure 10.16a Insertion of triceps brachii Anconeus Flexor carpi ulnaris Extensor carpi ulnaris Extensor digiti minimi Extensor indicis Tendons of extensor carpi radialis brevis and longus Extensor expansion (a) Extensor pollicis longus Extensor pollicis brevis Abductor pollicis longus Extensor digitorum Extensor carpi radialis brevis Extensor carpi radialis longus Brachioradialis Tendons of extensor digitorum
  • Slide 32
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm: Posterior Compartment PLAY A&P Flix: Extensor carpi radialis longus PLAY A&P Flix: Posterior Muscles of the wrist and fingers (b) PLAY A&P Flix: Extensor carpi radialis brevis PLAY A&P Flix: Extensor digitorum PLAY A&P Flix: Extensor carpi ulnaris(c)
  • Slide 33
  • Copyright 2010 Pearson Education, Inc. Figure 10.16b Olecranon process of ulna Interossei Anconeus Supinator Abductor pollicis longus Extensor pollicis longus Extensor pollicis brevis Extensor indicis (b)
  • Slide 34
  • Copyright 2010 Pearson Education, Inc. Muscles of the Forearm: Posterior Compartment PLAY A&P Flix: Posterior Muscles of the wrist and fingers (a)
  • Slide 35
  • Copyright 2010 Pearson Education, Inc. Movements of the Wrist and Fingers Flexion and extension Abduction an