Shoulder Joint

Question 1

One of the most mobile and least stabile joints in the body.

Answer 1

Glenohumeral Joint

Question 2

Humeral elevation that occurs in the scapular plane. 30 degrees forward in the frontal plane.

Answer 2

Scaption

Question 3

Attachment around the rim of the glenoid fossa of the scapula and the anatomical neck of the humerus.

Answer 3

Joint Capsule

Question 4

Reinforce the anterior portion of capsule. Superior, Middle, Inferior

Answer 4

Glenohumeral Ligaments

Question 5

Attaches from the lateral side of coracoid process and spans the joint anteriorly to the medial side of the greater tubercle. Strengthens the upper part of the joint capsule.

Answer 5

Coracohumeral Ligament

Question 6

Ring of fibrocartilage that surrounds the rim of the glenoid fossa.

Answer 6

Glenoid Labrum

Question 7

______ function is to deepen the articular cavity.

Answer 7

Glenoid Labrum

Question 8

SuprapinatusInfraspinatusTeres MinorSubscapularis(SITS)

Answer 8

Rotator Cuff

Question 9

The SITS muscles help the head of the humerus _____ against the glenoid fossa during movement.

Answer 9

Rotating

Question 10

Area near supraspinatus’s insertion onto the humerus that is poorly vascularized. “Critical Zone”.

Answer 10

Supraspinatus Tendon

Question 11

Full shoulder abduction is only possible if the shoulder joint is also _______. This allows the greater tubercle to rotate from under the acromion process.

Answer 11

Externally Rotated

Question 12

Prime Movers Flexion

Answer 12

Anterior Deltoid, Pectoralis Major

Question 13

Prime Movers Extension

Answer 13

Posterior Deltoid, Latissimus Dorsi, Teres Major, Pectoral Major

Question 14

Prime Movers Hyperextension (Any extension past neutral)

Answer 14

Latissimus Dorsi, Posterior Deltoid

Question 15

Prime Movers Abduction

Answer 15

Suprapinatus, Deltoid

Question 16

Prime Movers Adduction

Answer 16

Pectorals Major, Teres Major, Latissimus Dorsi

Question 17

Prime Movers Horizontal Abduction

Answer 17

Posterior Deltoid, Infraspinatus, Teres Minor

Question 18

Prime Movers Horizontal Adduction

Answer 18

Pectoralis Major, Anterior Deltoid

Question 19

External Rotation

Answer 19

Infraspinatus, Teres Minor, Posterior Deltoid

Question 20

Internal Rotation

Answer 20

Latissimus Dorsi, Teres Major, Subscapularis, Pectoralis Major, Anterior Deltoid