Anterior and Posterior Components of Arm

Question 1

Flexion and supination of forearm

Answer 1

Function of Biceps Brachii

Question 2

Weakly flexes and adducts arm

Answer 2

Function of Coracobrachialis

Question 3

Main flexor of forearm

Answer 3

Function of Brachialis

Question 4

Forearm extension; Long head also assists in arm extension

Answer 4

Function of Triceps

Question 5

Abducts ulna during pronation of forearm; Assists triceps during forearm extension

Answer 5

Function of Anconeus

Question 6

Short head- tip of coracoid process Long head- Supraglenoid tubercle of scapula

Answer 6

Origin of Biceps Brachii

Question 7

Tip of Coracoid

Answer 7

Origin of Coracobrachialis

Question 8

Distal half of anterior surface of humerus and intermuscular septum

Answer 8

Origin of Brachialis

Question 9

Long Head- Infraglenoid tubercle of scapula Lateral Head- Posterior surface of humerus above the radial groove Medial Head- Posterior surface of humerus below the radial groove

Answer 9

Origin of Triceps

Question 10

Posterior aspect of lateral epicondyle

Answer 10

Origin of Anconeus

Question 11

Tuberosity of radius

Answer 11

Insertion of Biceps Brachii

Question 12

Middle Third of Medial Border of Humerus

Answer 12

Insertion of Coracobrachialis

Question 13

Tuberosity of coronoid process

Answer 13

Insertion of Brachialis

Question 14

Olecranon Process

Answer 14

Insertion of Triceps

Question 15

Lateral surface of olecranon; Superior part of posterior surface of ulna

Answer 15

Insertion of Anconeus

Question 16

Musculocutaneous Nerve (C5-6)

Answer 16

Innervation of Biceps Brachii

Question 17

Musculocutaneous Nerve (C6-7)

Answer 17

Innervation of Coracobrachialis

Question 18

Musculocutaneous Nerve (C5-6)

Answer 18

Innervation of Brachialis

Question 19

Radial Nerve (C6-8)

Answer 19

Innervation of Triceps

Question 20

Radial Nerve (C7, 8, T1)

Answer 20

Innervation of Anconeus