Anterior Antebrachium (Layer 1)

Question 1

Pronator Teres

Answer 1

O: medial epicondyle of Humerus, coranoid process of ulna
I: mid-lateral radius
Inn: Median N. (C6-7)
BS: Ulnar A.
A: pronate forearm, weak flexion of forearm

Question 2

Flexor Carpi Radialis

Answer 2

O: medial epicondyle of humerus
I: 2nd metacarpal base (palmar)
Inn: Median N (C6-7)
BS: Ulnar A
A: flex hand, abduct hand, radial deviation

Question 3

Palmaris Longus

Answer 3

O: medial epicondyle of humerus 
I: palmar aponeurosis
Inn:  median N (C7-8)
BS: Ulnar A
A: flex hand at wrist, tighten palm

Question 4

Flexor Carpi Ulnaris

Answer 4

O: humeral: medial epicondyle of of humerus; ulnar: olecranon and posterior ulna
I: pisiform bone, hook of hamate, 5th metacarpal base
Inn: Ulnar N (C7-8)
BS: Ulnar A
A: flex hand, adduct hand, ulnar deviate