Hand Muscles

Question 1

Pronator teres

Answer 1

ORIGIN- Common flexor tendon from medial epicondyle of humerous and paranoid process of the ulnar

INSERTION- Middle of the lateral surface of the radius

ACTIONS:
PRONATE THE FOREARM
ASSIST TO FLEX THE ELBOW

Question 2

Pronator teres

Answer 2

ORIGIN- Common flexor tendon from medial epicondyle of humerous and paranoid process of the ulnar

INSERTION- Middle of the lateral surface of the radius

ACTIONS:
PRONATE THE FOREARM
ASSIST TO FLEX THE ELBOW

Question 3

Extensor carpi radialis brevis

Answer 3

ORIGIN- Common extensor tendon from the lateral epicondyle of the humerous

INSERTION- Base of the 3rd metacarpal

ACTIONS:
EXTEND THE WRIST
ABDUCT THE WRIST

Question 4

Extensor digatorum

Answer 4

ORIGIN- Common extensor tendon from the lateral epicondyle

INSERTION- Bases of middle and distal phalanges of 2-5th fingers

ACTIONS:
EXTEND THE 2ND- 5TH FINGERS
ASSIST TO EXTEND THE WRIST

Question 5

Flexor carpi ulnaris

Answer 5

ORIGIN-
(Humeral head) common flexor tendon from medial epicondyle of the humerous

(Ulnar head) posterior surface and proximal 2/3 of ulnar

INSERTION- Pisiform, hook of hamate, and base of 5th metacarpal

ACTIONS:
FLEX THE WRIST
ASSIST TO FLEX THE ELBOW