Muscles that are superficial forearm/wrist flexors

Question 1

Answer 1

Pronator Teres

Origin: Medial epicondyle of humerus and coronoid process of ulna

Insertion: Midlateral surface of radius

Action: Pronates forearm and reakly flexes forearm at elbow joint

Innervation: Median nerve

Question 2

Answer 2

Flexor Carpi Radialis

Origin: Medial epicondyle of humerus

Insertion: 2nd and 3rd metacarpals

Action: flexes and abducts hand at wrist

Innervation: Medial nerve

Question 3

Answer 3

Palmaris Longus

Origin: Medial epicondyle of humerus

Insertion: flexor retinaculum and palmar aponeurosis (fascia at center of palm)

Action: weakly flexes hand at wrist

Innervation: Median nerve

Question 4

Answer 4

Flexor Carpi Ulnaris

Origin: Medial epicondyle of humerus and superior posterior border of ulna

Insertion: Pisiform, hamate, and base of 5th metacarpal

Action: Flexes and adducts hand at wrist

Innervation: Ulnar nerve