Unit 9: Shoulder and Arm Quiz

Question 1

The [blank] and the [blank] processes of the scapula protect the shoulder or glenohumeral joint.

Answer 1

coracoid, acromion

Question 2

Only 1/4 to 1/3 of the humeral head articulates with the __________ fossa at any one time, making the shoulder joint mobile and unstable.

Answer 2

Glenoid

Question 3

The __________ joint is the sole bony connection of the shoulder girdle to the axial spine.

Answer 3

Sternoclavicular

Question 4

The __________ is the primary muscle that isometrically maintains scapular abduction in a handstand, with assistance from the trapezius and pectoralis minor.

Answer 4

Serratus anterior

Question 5

To raise your arms overhead without lifting your shoulders, the scapular movement called __________ is inhibited.

Answer 5

Elevation

Question 6

The __________ is a diamond shaped muscle that has three regions and is sometimes referred to as the “shawl” or “kite” muscle.

Answer 6

Trapezius

Question 7

As one raises/abducts their arms at the shoulder joint, the humerus and the scapula act synergistically to allow for a greater range of motion. This interaction is known as __________.

Answer 7

Scapulohumeral rhythm

Question 8

The __________ is composed of four muscles and their tendons, which add stability and rotary motion to the glenohumeral joint

Answer 8

Rotator cuff

Question 9

The member of the rotator cuff that is responsible for the first 10-15 degrees of abduction at the glenohumeral joint is the __________.

Answer 9

Supraspinatus

Question 10

The glenoid fossa is on the lateral aspect of which bone?

Answer 10

Scapula