Anterior Forearm

Question 1

Pronator Teres

Answer 1

Origin: Humeral head - Medial epicondyle of humerus
Ulnar head - Coronoid process of the ulna

Insertion: Midshaft radius

Action: Pronates forearm

Nerve: Median

Question 2

Flexor Carpi radialis

Answer 2

Origin: Medial epicondyle of humerus

Insertion: Bases of 2nd and 3rd metacarpals

Action: Flexes and abducts hand at wrist

Nerve: Median

Question 3

Palmaris Longus

Answer 3

Origin: Medial epicondyle of humerus

Insertion: Palmar aponeurosis

Action: Flexes the wrist

Nerve: Median

Question 4

Flexor carpi Ulnaris

Answer 4

Origin: Humeral head - Medial epicondyle of humerus
Ulnar head - Olecranon of Ulna

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

Action: Flexes and adducts hand at wrist

Nerve: Ulnar

Question 5

Flexor digitorum superficialis

Answer 5

Origin: Humeroulnar head - Medial epicondyle +
coronoid process
Radial head - Radius

Insertion: Sides of middle phalanx of 2nd-5th digits by tendon that splits

Action: Flexes hand at wrist and digits 2-5 at metacarpophalangeal and proximal interphalangeal joints

Nerve: Median

Question 6

Flexor pollicis longus

Answer 6

Origin: Radius and interosseous membrane

Insertion: Distal Phalnax of thumb

Action; Flexes metacarpophalangeal joint and interphalangeal joint of thumb

Nerve: Median

Question 7

Flexor digitorum profundus

Answer 7

Origin: Ulna and interosseous membrane

Insertion: Distal phalanges of 2-5 digits, tendon passes through bifurcation

Action: Flexes hand at wrist and metacarpophalangeal and distal interphlangeal joints of digits 2-5

Nerve: Lateral half by median nerve, medial half by ulnar nerve

Question 8

Pronator Quadratus

Answer 8

Origin: Distal ullna

Insertion: Distal radius

Action: Pronation

Nerve: Median