ANAT Book

Question 1

The scapula and the clavicle articulate at the

Answer 1

acromioclavicular joint

Question 2

the clavicle articulates with the trunk at the

Answer 2

sternoclavicular joint

Question 3

the scapula articulates with the humerus at

Answer 3

glenohumeral joint

Question 4

the forearm articulates with carpus ta the wrist

Answer 4

radiocarpal joint

Question 5

the skin and subcutaneous tissue of the shoulder region are supplied by the

Answer 5

subclavicular nerves, whereas the cutaneous supply of the remainder of the upper limb is derived from the brachial plexus

Question 6

Cutaneous nerves of arm

Answer 6

• Upper lateral
• Lower lateral
• Posterior
• Medial

Question 7

Cutaneous nerves of the forearm

Answer 7

• Lateral
• Posterior
• Medial

Question 8

The axillary artery is continuous

Answer 8

with the subclavian artery which derives from the the brachiocephalic trunk

Question 9

Deltoid

Answer 9

Has attachment to the lateral third of the clavicle and to the acromion and spine of the scapula and attaches to the deltoid tuberosity of the humerus. Detoild acts only on the shoulder joint, where it acts as an abductor. deltoid is supplied by the axillary nerve,

Question 10

Cephalic vein lies in the

Answer 10

deltopectoral groove

Question 11

Axillary nerve

Answer 11

supplies the deltoid, teres minor, the shoulder joint, and skin.

Question 12

Damage to the axillary nerve may occur during

Answer 12

dislocation of the shoulder joint, resulting in weakness of abduction, impaired sensation

Question 13

the anterior compartment of the arm contains three muscles

Answer 13

biceps brachii, corabrachialis, brachialis

Question 14

the three muscles of the anterior compartment are supplied by the

Answer 14

musculocutaneous nerve

Question 15

The two heads of the biceps seperate proximally and have tendinous attachment to the scapula.

Answer 15

The short head lies medially and attaches to the tip of the coracoid process. the tendon of the long head attaches to the supraglenoid tubercle

Question 16

biceps is a strong flexor of the

Answer 16

elbow and supinator of the forearm at the radioulnar joint, and a weak flexor of the shoulder joint.

Question 17

coracobrachialis

Answer 17

attaches to the coracoid process with the head of the biceps. the muscle attaches distally to the medial sie of the shaft of the humerus. coracobrachialis is pierced by the musculocutsneous nerve and functions as a weak flexor and adductor of the shoulder joint.

Question 18

brachialis

Answer 18

lies deeply and has an extensive attachment to the anterior surface of the distal half of the shaft of the humerus and adjacent intermuscualr septa. the muscle passes to the coronoid process of the ulna and acts as a powerful flexor of the elbow joint.