Unit 2 - Upper Limb: Anterior Compartment of Forearm, Superficial Muscles (Ex. II)

Question 1

flexor carpi radialis

Answer 1

O: M epicondyle of humerus
I: base of 2nd metacarpal (variance: base of 3rd metacarpal)
Inn: median N (C6, C7)
A: wrist flexion and abduction (R deviation) of hand

Question 2

palmaris longus

Answer 2

O: M epicondyle of humerus
I: palmar aponeurosis
Inn: median N (C7, C8)
A: weak elbow flexion; flexion tightens palmar aponeurosis @ wrist

Question 3

flexor carpi ulnaris

Answer 3

O: humeral head - M epicondyle of humerus; ulnar head - olecranon of ulna
I: pisiform; hook of hamate; base of 5th metacarpal
Inn: ulnar N (C7-T1)
A: wrist flexion and adduction (ulnar deviation) of hand

Question 4

pronator teres

Answer 4

O: humeral head - M epicondyle of humerus; ulnar head - coronoid process of ulna
I: L radius (distal to supinator insertion)
Inn: median N (C6, C7)
A: weak elbow flexor; pronation of forearm