Anterior forearm

Question 1

Pronator teres

Answer 1

Origin-Humeral head: Medial epicondyle (via common flexor tendon) Ulnar head: coronoid process

Insertion-Medial portion of lateral radius

Innervation-Median n.

Action-Pronates and flexes forearm at elbow

Question 2

Flexor carpi radialis

Answer 2

Origin-Medial epicondyle via common flexor tendon

Insertion-Base of 2nd metacarpal

Innervation-Median n.

Action-Flexes and abducts hand at wrist

Question 3

Palmaris longus

Answer 3

Origin-
Insertion-
Innervation-
Action-

Question 4

Flexor carpi ulnaris

Answer 4

Origin-Humeral head:Medial epicondyle via common flexor tendon Ulnar head: olecranon process

Insertion-Pisiform, hook of hamate, 5th metacarpal

Innervation-Ulnar n.

Action-Flexes and adducts hand at wrist

Question 5

Flexor carpi ulnaris

Answer 5

Origin-Humeral head:Medial epicondyle via common flexor tendon Ulnar head: olecranon process

Insertion-Pisiform, hook of hamate, 5th metacarpal

Innervation-Ulnar n.

Action-Flexes and adducts hand at wrist

Question 6

Flexor digitorum superficialis

Answer 6

Origin-Humeroulnar head: Medial epicondyle and coronoid process, Radial head: superior portion of radius

Insertion-Intermediate phalanx, digits 2-5

Innervation-Median n.

Action-Flexes middle phalnages at proximal IP joint of digits 2-5, may assist flexion of proximal phalanges at MCP joint

Question 7

Flexor digitorum superficialis

Answer 7

Origin-Humeroulnar head: Medial epicondyle and coronoid process, Radial head: superior portion of radius

Insertion-Intermediate phalanx, digits 2-5

Innervation-Median n.

Action-Flexes middle phalnages at proximal IP joint of digits 2-5, may assist flexion of proximal phalanges at MCP joint

Question 8

Flexor digitorum profundus

Answer 8

Origin-Proximal ulna, interosseous membrane

Insertion-Bases of distal phalanx of digits 2-5

Innervation-Median n. digits 2-3, Ulnar n. digits 4-5

Action-Flexes distal phalanges at the distal IP joint of digits 2-5

Question 9

Flexor pollicis longus

Answer 9

Origin-Radius, interosseous membrane

Insertion-Base of distal phalanx of digit 1

Innervation-Median n.

Action-Flexes phalanges of digit 1

Question 10

Pronator quadratus

Answer 10

Origin-Distal ulna

Insertion-Distal radius

Innervation-Median n.

Action-Pronates forearm