Quiz

Question 1

The middle deltoid muscle is located on the _______ surface of the humerus and therefore when it contracts and shortens it will cause _________ of the humerus.

Answer 1

lateral; abduction

Question 2

For muscles of the upper extremity, resistance is applied on the distal end of the bone upon which it inserts. This holds true for all of the against gravity shoulder muscle testing positions except for:

Answer 2

shoulder internal and external rotation

Question 3

Shoulder flexion is an action of which of the following muscles

Answer 3

anterior deltoid, pectoralis major, coracobrachialis and biceps brachii

Question 4

The rotator cuff muscles include

Answer 4

supraspinatus, infraspinatus, teres minor and subscapularis

Question 5

All of the rotator cuff muscles contract and produce either internal or external rotation except for___________ which provides stability of the shoulder and upon contraction produces abduction of the shoulder.

Answer 5

supraspinatus

Question 6

When rotator cuff surgery involves cutting of the muscles therapy begins with ________ exercise.

Answer 6

passive

Question 7

The final diagnosis of a rotator tear is made through which diagnostic test:

Answer 7

MRI

Question 8

When anterior deltoid is the agonist muscle __________ will be the antagonist muscle.

Answer 8

posterior deltoid

Question 9

Sarah lifts her arm up into a position of 90 degrees of shoulder flexion. This is called an _______ contraction. She then holds the arm in this position to the count of 5 which is an _______ contraction. She then slowly lowers the arm which is referred to as an ________ contraction.

Answer 9

isotonic concentric, isometric, isotonic eccentric

Question 10

Muscles of the upper extremity are designed so that a muscle that crosses anterior to a joint will produce ______ whereas a muscle that crossed posterior to a joint will produce_______

Answer 10

flexion; extension