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11 Cards in this Set
- Front
- Back
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Deltoid m.
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Axillary n.
Posterior cord Root: C5 Supply: posterior circumflex humeral a. Action: shoulder abduction, flexion, & extension Origin: anterior/upper surface of lateral clavicle, acromion, spine of scapula Insertion: deltoid tuberosity of humerus Antagonist: Latissimus dorsi |
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Pronator teres
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Median n.
Lateral cord Root: C6 & C7 Supply: ulnar a. & radial a. Action: pronation of forearm, flexes elbow Origin: humeral head - medial epicondyle of humerus (common flexor tendon); ulnar head - coronoid process of ulna Insertion: middle of lateral radius Antagonist: supinator m. |
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Abductor pollicis brevis
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Median n. (recurrent branch)
Medial cord. Root: C8 & T1 Supply: superficial palmar arch Action: abduction of thumb (assists in opposition, extension) Origin: transverse carpal ligament, scaphoid, trapezium Insertion: radial base proximal phalanx of thumb, thumb extensors Antagonist: adductor pollicis m. |
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Thumb sensation - palmar aspect
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Median n.
Lateral cord Root: C6 |
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3rd finger sensation - palmar aspect
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Median n.
Lateral cord Root: C7 |
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Biceps brachii
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Musculocutaneous n.
Lateral cord. Root: C5 & C6 Supply: brachial a. Action: flexes elbow, supinates forearm Origin: short head - coracoid process of scapula; long head - supraglenoid tubercle Insertion: radial tuberosity, bicipital aponeurosis into deep fascia of medial forearm Antagonist: triceps brachii m. |
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Triceps m.
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Radial n.
Posterior cord Root: C6 & C7 Supply: deep brachial a. Action: extends forearm, (long head extends shoulder) Origin: long head - infraglenoid tubercle; lateral head - above radial sulcus; short head - below radial sulcus Insertion: olecranon process of ulna Antagonist: biceps brachii m. |
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Abductor pollicis longus m.
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Radial n. (posterior interosseous n.)
Posterior cord Root: C7 & C8 Supply: posterior interosseus a. Action: extends, abducts thumb Origin: radius, ulna, interosseus membrane Insertion: first metacarpal Antagonist: adductor pollicis m. |
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Abductor digiti minimi
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Ulnar n.
Medial cord Root: C8 & T1 Supply: ulnar a. Action: abducts 5th digit Origin: pisiform Insertion: ulnar (medial) side of base of 5th proximal phalanx |
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Thumb sensation - dorsal aspect
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Radial n.
Posterior cord Root: C6 |
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4th & 5th finger sensation
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Ulnar n.
Medial cord Root: C8 |
