Muscles of arm above elbow

Question 1

Origins of Biceps Brachii

Answer 1

Long Head- Supraglenoid Tubercle

Short Head- Coracoid Process

Question 2

Insertion of Biceps Brachii

Answer 2

Radial Tuberosity

Bicipital aponeurosis to fascia on medial forearm

Question 3

Innervation of Biceps Brachii

Answer 3

Musculocutaneous Nerve (C5-C7)

Question 4

Actions of Biceps Brachii

Answer 4

Flexes arm at the shoulder

Question 5

Origin of Brachialis

Answer 5

Anterior, distal half of the humerus

Question 6

Insertion of Brachialis

Answer 6

Coronoid Process and tuberosity of ulna

Question 7

Innervation of Brachialis

Answer 7

Musculocutaneous Nerve (C5-C7)

Question 8

Action of Brachialis

Answer 8

Flexes forearm at elbow joint

Question 9

Origin of Brachioradialis

Answer 9

Lateral Supracondylar ridge of humerus

Question 10

Insertion of Brachioradialis

Answer 10

Styloid Process of radius

Question 11

Innervation of Brachioradialis

Answer 11

Radial Nerve (C5-C6)

Question 12

Actions of Brachioradialis

Answer 12

Flexes forearm at Elbow (accessory)

Question 13

Origin of Triceps Brachii

Answer 13

Long Head - Infraglenoid Tubercle
Lateral Head- Posterolateral humerus above spiral groove
Medial Head - Posterolateral humerus below spiral groove

Question 14

Insertion of Triceps Brachii

Answer 14

Olecranon Process (ulna)

Question 15

Innervation of Triceps Brachii

Answer 15

Radial Nerve (C5-T1)

Question 16

Action of of Triceps Brachii

Answer 16

Extends forearm at elbow

Question 17

Origin of Pronator Teres

Answer 17

Medial Epicondyle

Question 18

Insertion of Pronator Teres

Answer 18

Middle and Lateral surface of Radius

Question 19

Innervation of Pronator Teres

Answer 19

Median Nerve (C6-C7)

Question 20

Action of Pronator Teres

Answer 20

Pronates and flexes arm at elbow

Question 21

Origin of Pronator Quadratus

Answer 21

Median, anterior surface of ulna

Question 22

Insertion of Pronator Quadratus

Answer 22

Lateral, anterior surface of radius

Question 23

Innervation of Pronator Quadratus

Answer 23

Median Nerve (C6-C7)

Question 24

Action of Pronator Quadratus

Answer 24

Pronates forearm

Question 25

Origin of Supinator

Answer 25

Lateral epicondyle of humerus

Question 26

Insertion of Supinator

Answer 26

Lateral Proximal radial shaft

Question 27

Innervation of Supinator

Answer 27

Radial Nerve

Question 28

Actions of Supinator

Answer 28

Supinates the forearm