Question 1

Which of the following best describes the primary function of the appendicular skeleton?

Accepted Answer

Aid in movement by providing attachment points for muscles

Question 2

The pectoral girdle consists of which two bones?

Accepted Answer

Clavicle and scapula

Question 3

Why are the sockets of the pectoral girdle considered shallow?

Accepted Answer

To maximize movement of the upper limb

Question 4

Which joint is formed by the medial articulation of the clavicle with the manubrium?

Accepted Answer

Sternoclavicular joint

Question 5

The acromion is a surface feature of which bone?

Accepted Answer

Scapula

Question 6

Which surface feature of the humerus serves as the insertion point for the deltoid muscle?

Accepted Answer

Deltoid tuberosity

Question 7

The ulna is longer and located medial to the radius. Which structure of the ulna articulates with the humerus?

Accepted Answer

Olecranon

Question 8

Which membrane joins the shafts of the radius and ulna?

Accepted Answer

Interosseous membrane

Question 9

A patient presents with limited movement in the shoulder. Which anatomical feature is most likely compromised?

Accepted Answer

Shallow glenoid cavity

Question 10

Which joint is formed by the lateral articulation of the clavicle with the acromion of the scapula?

Accepted Answer

Acromioclavicular joint

Question 11

If the interosseous membrane between the radius and ulna is damaged, which function would be most affected?

Accepted Answer

Stability and force transmission between the forearm bones

Question 12

Which of the following correctly matches the bone to its function in the appendicular skeleton?

Accepted Answer

Scapula: provides attachment for shoulder muscles

Question 13

A fracture at the deltoid tuberosity would most directly affect which muscle's function?

Accepted Answer

Deltoid

Question 14

Which of the following is NOT a feature of the scapula?

Accepted Answer

Capitulum

Question 15

During a push-up, which joint transfers mechanical force from the upper limb to the trunk?

Accepted Answer

Sternoclavicular joint

Question 16

Which bone is the longest and largest in the upper limb?

Accepted Answer

Humerus

Question 17

The head of the humerus articulates with which structure to form the shoulder joint?

Accepted Answer

Glenoid cavity

Question 18

Which of the following best explains why the pectoral girdle does not articulate with the vertebral column?

Accepted Answer

To allow greater range of motion for the upper limb

Question 19

A patient suffers a dislocation at the acromioclavicular joint. Which bones are involved?

Accepted Answer

Clavicle and scapula

Question 20

Which anatomical feature is responsible for the origin of most forearm muscles?

Accepted Answer

Medial and lateral epicondyles of the humerus

Appendicular Skeleton: Structure and Function

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