Shoulder

Question 1

Shoulder Flexors

Answer 1

deltoid (anterior), clavicular section of pectoralis major, coracobrachialis, biceps brachii (short head)

Question 2

Shoulder Extensors

Answer 2

deltoid (posterior). triceps brachii (long head)

Question 3

Shoulder Abductors

Answer 3

deltoid (middle), supraspinatus

Question 4

Shoulder Adductors

Answer 4

teres major, latissimus dorsi

Question 5

Shoulder External Rotators

Answer 5

infraspinatus, teres minor

Question 6

Shoulder Internal Rotators

Answer 6

teres major, subscapularis

Question 7

Shoulder Horizontal Abductors

Answer 7

teres minor, infraspinatus, deltoid (posterior)

Question 8

Shoulder Horizontal Adductors

Answer 8

pectoralis major, coracobrachialis, deltoid (anterior)

Question 9

What are the two accessory motions of the shoulder?

Answer 9

upward and downward scapular rotation

Question 10

What is circumduction?

Answer 10

complex joint motion, arm spins in a circle (pitching)

Question 11

Define “bursa”

Answer 11

a sac filled with liquid that is found between tissues

Question 12

What is the function of the bursa?

Answer 12

cushions that decrease friction and irritation between the tissues; helps joints move smoothly and painlessly

Question 13

What are the four bursae in the shoulder?

Answer 13

subscapular, subdeltoid, subacromial, subcoracoid