Upper Extremity - Arm

Question 1

Origin and Insertion of Triceps Brachii

Answer 1

O - scapula and humerus

I - olecranon process of ulna

Question 2

Action and Innervation of Triceps

Answer 2

Extends shoulder and elbow

Radial nerve

Question 3

Origin and insertion of Brachialis

Answer 3

O - humerus

I - ulnar tuberosity

Question 4

Action and Innervation of Brachialis

Answer 4

Flexes elbow

Musculocutaneous nerve

Question 5

Origin and insertion of coracobrachialis

Answer 5

O - coracoid of scapula

I - midshaft of humerus

Question 6

Action and Innervation of Coracobrachialis

Answer 6

Flexes shoulder

Musculocutaenous nerve

Question 7

Origin and insertion of Biceps Brachii

Answer 7

O - Scapula

I - Radial tuberosity

Question 8

Action and Innervation and Biceps

Answer 8

Flexes shoulder and elbow and supinates forearm

Musculocutaneous nerve

Question 9

Origin and insertion and Anconeus

Answer 9

O - lateral epicondyle of humerus

I - olecranon process of ulna

Question 10

Action and Innervation of Anconeus

Answer 10

Extends elbow and abducts ulna

Radial Nerve

Question 11

Origin and Insertion of Pronator Teres

Answer 11

O - Medial Epicondyle of humerus and ulna

I - Radius

Question 12

Action and Innervation of Pronator Teres

Answer 12

Pronates forearm

Median nerve

Question 13

Borders of Triangular Interval

Answer 13

Superior - Teres minor
Lateral - Humerus
Medial - Long head of triceps

Question 14

Borders of Cubital fossa

Answer 14

Medial - Pronator teres
Lateral - Brachioradialis
Superior - Brachialis