Muscles of Arm

Question 1

Biceps Branchii Origin

Answer 1

Long head: supraglenoid tubercle

Short head: coracoid process of scapula

Question 2

Biceps Branchii Insertion

Answer 2

Tuberosity of radius

Biceps aponeurosis wraps fascia overlying medial aspect of arm

Question 3

Biceps Branchii Innervation

Answer 3

Musculocutaneous nerve

Question 4

Biceps Branchii Action

Answer 4

1) Supinate the forearm

2) can also flex when supine

Question 5

Biceps Branchii Blood Supply

Answer 5

Muscular branches of brachial artery

Question 6

Coracobrachialis Origin

Answer 6

Coracoid process of scapula

Question 7

Coracobrachialis Insertion

Answer 7

Mid-humeral shaft on the medial aspect of the bone

Question 8

Coracobrachialis Innervation

Answer 8

Muscolocutaneous nerve

Question 9

Coracobrachialis Action

Answer 9

1) Flexes arm

2) Adduct arm

Question 10

Coracobrachialis Blood Supply

Answer 10

Muscular branches of brachial artery

Question 11

Brachialis Origin

Answer 11

Mid-humeral shaft of anterior aspect

Question 12

Brachialis Insertion

Answer 12

Proximal ulna

Question 13

Brachialis Innervation

Answer 13

Musculocutaneus nerrvee

Question 14

Brachialis Action

Answer 14

Primary flexor of the forearm

Question 15

Brachialis Blood Supply

Answer 15

Muscular branches of brachial artery, recurrent radial artery

Question 16

Triceps brachii Origin

Answer 16

Long head:
Infraglenoid tubercle

Lateral head:
Shaft of the humerus
Proximal

Medial head:
Posterior shaft of humerus

Question 17

Triceps brachii Insertion

Answer 17

Olecranon process of ulna

Question 18

Triceps brachii Innervation

Answer 18

Primarily:

Radial nerve

Question 19

Triceps brachii Action

Answer 19

Extension of the forearm

Question 20

Triceps brachii BloodSupply

Answer 20

Branches of deep brachial artery