Upper limb 2

Question 1

what compartment of the arm flexes the elbow and the shoulder joint

Answer 1

the anterior compartment of the arm

Question 2

name the 3 muscles that make up the anterior compartment of the arm

Answer 2

biceps brachii, coracobrachialis and the brachial

Question 3

where does the biceps brachii arise from

Answer 3

there are two heads - the short head arises from the coracoid process of the scapula and the long head arises from the supraglenoid tubercle

Question 4

where does the biceps brachii tendon insert

Answer 4

onto the tuberosity of the radius

Question 5

what are the actions of the bicep brachii muscle

Answer 5

flexion of the elbow joint, flexion of the shoulder joint and supinates the forearm

Question 6

where does the short head of the biceps brachii arise from

Answer 6

the coracoid process of the scapula

Question 7

where does the long head of the biceps brachii arise from

Answer 7

the supra-glenoid tubercle

Question 8

what other muscle arises from the same location as the short head of the biceps brachii

Answer 8

the coracobrachialis

Question 9

what are the attachments of the coradobrachialis muscle

Answer 9

the coracoid process of the scapula and the medial shaft of the humerus

Question 10

what are the actions of the cracobrachialis muscles

Answer 10

flexion of the shoulder joint and adduction of the arm

Question 11

what are the attachments of the brachialis muscle

Answer 11

from the distal half of the humerus to the coronoid process of the ulnar bone

Question 12

what are the actions of the brachialis muscle

Answer 12

flexion of the elbow joint

Question 13

what nerve innervates all of the biceps muscles

Answer 13

the musculocutaneous nerve

Question 14

what muscle does the musculocutaneous pierce through on the way to the arm

Answer 14

the coracobrachialis

Question 15

besides motor innervation to the biceps, what is the other role of the musculocutaneous nerve

Answer 15

sensory innervation to the lateral aspect of the forearm

Question 16

what are the branches of the brachial artery

Answer 16

the radial and the ulnar artery

Question 17

name the deep branch that is given off of the radial artery

Answer 17

the profound brachii

Question 18

what is the role of the median nerve

Answer 18

innervates most of the forearm muscles

Question 19

what cords form the median nerve

Answer 19

the lateral and the medial cords

Question 20

what is the role of the ulnar nerve

Answer 20

innervation of some muscles in the forearm and sensory to some aspects of the hand

Question 21

damage to what will result in damage tot he ulnar nerve

Answer 21

the medial epicondyle

Question 22

damage to the surgical neck of the humerus will damage what nerve

Answer 22

the axillary nerve

Question 23

damage to what will result in damage of the radial nerve

Answer 23

the radial groove of the humerus

Question 24

what forms the base of the cubital fossa

Answer 24

an imaginary line between the 2 epicondyles of the humerus

Question 25

what muscle forms the medial border of the cubital fossa

Answer 25

pronator teres

Question 26

what muscle forms the lateral border of the cubital fossa

Answer 26

the brachiradialirs

Question 27

what nerve innervates the tricep muscles

Answer 27

the radial nerve

Question 28

what cord does the radial nerve come from

Answer 28

the posterior cord

Question 29

what ligaments are found in the elbow

Answer 29

the ulnar collateral, the radial collateral and the annular

Question 30

name the 3 flexors of the elbow

Answer 30

the biceps brachii, the brachioradialis and the brachialis

Question 31

names the elbow extensor muscles

Answer 31

the triceps and the anconeus

Question 32

name the 2 supinators of the arm

Answer 32

the biceps brachii and the supinator muscle

Question 33

name the pronator muscles

Answer 33

the pronator teres and the pronator quadratus