Pectoral Girdle

Question 1

How many bones in the pectoral girdle

Answer 1

Two

Question 2

What is the bone of the clavicle like

Answer 2

Slender doubly curved

Question 3

What does the clavicle act as

Answer 3

A brace to hold arm away from top of thorax

Question 4

What does the clavicle prevent

Answer 4

Shoulder dislocation

Question 5

The clavicle articulates with what medically

Answer 5

Sternum

Question 6

The clavicle articulates with what laterally

Answer 6

Scapula

Question 7

If the clavicle were to break what would happen

Answer 7

The whole shoulder caves in medically

Question 8

Shoulder blade

Answer 8

Scapula

Question 9

What is the bone of the scapula like

Answer 9

Triangular and wing shaped

Question 10

The clavicle and and scapula combine at what

Answer 10

The acromioclavicular joint at the acromion

Question 11

The scapula articulates with the arm at what

Answer 11

Glenoid cavity

Question 12

Parts of the scapula

Answer 12

Coracoid process and suprascapular notch

Glenoid cavity

Question 13

What is the function of the coracoid process

Answer 13

Anchors some of the muscles of the arm

Question 14

What is the function of the suprascapular notch

Answer 14

Serves as a nerve passageway

Question 15

Points over the top of the shoulder

Answer 15

Coracoid process

Question 16

How is the scapula connected the axial skeleton

Answer 16

Held in place by trunk muscles

Question 17

The shoulder girdle allows for what

Answer 17

Free movement to the upper limb and very light

Question 18

What is the drawback of the shoulder girdle

Answer 18

Easily dislocated

Question 19

Three reasons that the shoulder girdle allows free movement to upper limb

Answer 19

1. Attaches to axial skeleton out only one point—sternoclavicular
2. Loose attachment of scapula allows it to slide back and forth against thorax when muscles act
3. Glens is cavity is shallow and shoulder joint is poorly reinforced by ligaments

Question 20

Collarbone

Answer 20

Clavicle