$2 \times (1 \text{ clavicle} + 1 \text{ scapula}) = 4$

Question 1

Which of the following statements best describes the connection between the pectoral girdle and the axial skeleton?

Accepted Answer

The pectoral girdle connects to the axial skeleton only at the manubrium of the sternum.

Question 2

A patient suffers a fracture at the acromial end of the clavicle. Which joint is most likely to be affected?

Accepted Answer

Acromioclavicular joint

Question 3

Which anatomical feature of the scapula serves as the attachment site for the clavicle?

Accepted Answer

Acromion

Question 4

A trauma patient presents with a dislocated shoulder. Which cavity of the scapula is directly involved in this injury?

Accepted Answer

Glenoid cavity

Question 5

Which of the following bones is NOT part of the pectoral girdle?

Accepted Answer

Sternum

Question 6

If a person has a congenital defect resulting in the absence of both scapulae, which function would be most directly impaired?

Accepted Answer

Ability to position and move the upper limbs

Question 7

Which of the following best describes the orientation of the clavicle in the human body?

Accepted Answer

It runs horizontally between the manubrium and the acromion.

Question 8

A fracture at the sternal end of the clavicle would most likely disrupt which articulation?

Accepted Answer

Sternoclavicular joint

Question 9

Which of the following is a function of the pectoral girdle?

Accepted Answer

Connects the arms to the body and positions the shoulders

Question 10

A patient has a fracture at the lateral border of the scapula. Which of the following is closest to the site of injury?

Accepted Answer

Acromion

Question 11

Which of the following best explains why the pectoral girdle allows for a wide range of motion in the upper limb?

Accepted Answer

It is connected to the axial skeleton only at the manubrium, allowing greater mobility.

Question 12

Which structure of the scapula is most anterior and serves as an attachment for muscles of the arm and chest?

Accepted Answer

Coracoid process

Question 13

A patient presents with pain at the superior border of the scapula. Which anatomical landmark is closest to this region?

Accepted Answer

Superior angle

Question 14

Which of the following best describes the function of the acromion process?

Accepted Answer

It serves as the attachment site for the clavicle at the acromioclavicular joint.

Question 15

If the clavicle is fractured at its midpoint, which of the following consequences is most likely?

Accepted Answer

The scapula will lose its only bony connection to the axial skeleton.

Question 16

Which of the following best describes the orientation of the scapula in anatomical position?

Accepted Answer

The medial border is closest to the vertebral column.

Question 17

A patient with a shoulder injury is unable to abduct their arm. Which structure is most likely involved?

Accepted Answer

Glenoid cavity

Question 18

Which of the following is the correct sequence of bones from medial to lateral in the pectoral girdle?

Accepted Answer

Sternum, clavicle, scapula

Question 19

Which of the following best explains why a fractured clavicle is a common injury in falls onto the shoulder?

Accepted Answer

The clavicle is the only bone connecting the upper limb to the axial skeleton, transmitting force from the arm to the trunk.

Question 20

Which of the following equations best represents the total number of bones in the pectoral girdle?

Accepted Answer

$2 	imes (1 	ext{ clavicle} + 1 	ext{ scapula}) = 4$

The Appendicular Skeleton: Structure and Function

Study Guide - Practice Questions