Anterior Upper Limb Muscles

Question 1

What are the anterior upper limb muscles?

Answer 1

• Biceps brachii
• Brachialis
• Flexor digitorum superficialis
• Flexor carpi ulnaris
• Flexor carpi radialis

Question 2

What are the movements of biceps brachii?

Answer 2

• Long head- arm abduction and medial rotation
• Short head- arm adduction
• Both heads- arm flexion

Question 3

What are the attachments of biceps brachii?

Answer 3

• Origin: supraglenoid tubercle of scapula (long head) and apex of coracoid process of scapula (short head)
• Insert: radial tuberosity and deep fascia of forearm

Question 4

What are the movements of brachialis?

Answer 4

• Major flexor of forearm at elbow joint

- Flexion of elbow in all positions

Question 5

What are the attachments of brachialis?

Answer 5

• Origin: distal half of anterior surface of humerus

- Inserts: coronoid process of ulna and ulnar tuberosity

Question 6

What are the movements of flexor digitorum superficialis?

Answer 6

• Flexion of proximal interphalangeal joints 2-5 and 2nd-5th metacarpophalangeal joints

Question 7

What are the attachments of flexor digitorum superficialis?

Answer 7

• Origin: from medial epicondyle of humerus, anterior border of radius and coronoid process of ulna
• Inserts: bases of middle phalanges 2-5 of hand

Question 8

What are the movements of flexor carpi ulnaris?

Answer 8

• Adduction and flexion of wrist joint

Question 9

What are the attachments of flexor carpi ulnaris?

Answer 9

• Origin: medial epicondyle of humerus, olecranon of ulna and posterior border of ulna
• Inserts: base of 5th metacarpal bone, hook of hamate bone, and pisiform bone

Question 10

What are the movements of flexor carpi radialis?

Answer 10

• Abduction and flexion of wrist joint

Question 11

What are the attachments of flexor carpi radialis?

Answer 11

• Origin: medial epicondyle of humerus

- Inserts: base of 2nd and 3rd metacarpal bones