Question 1

Which of the following best describes the function of the thoracic cage?

Accepted Answer

It protects vital organs of the thoracic cavity, supports the shoulder girdles and upper limbs, and provides attachment sites for muscles of the neck, back, chest, and shoulders.

Question 2

A patient suffers a blow to the chest at the level of the xiphoid process. Which of the following complications is most likely to occur?

Accepted Answer

Massive hemorrhaging due to damage to the underlying liver or heart

Question 3

Which ribs are classified as 'true ribs' and what is their defining feature?

Accepted Answer

Ribs 1–7; they attach directly to the sternum by individual costal cartilages.

Question 4

During CPR, why must hands be positioned on the midsternum rather than the xiphoid process?

Accepted Answer

To prevent breaking off the xiphoid process and damaging underlying organs

Question 5

Which anatomical landmark is a central indentation in the superior border of the manubrium?

Accepted Answer

Jugular notch

Question 6

A typical rib articulates with which parts of the thoracic vertebrae?

Accepted Answer

The transverse process and the body of two adjacent vertebrae

Question 7

Which of the following statements about the pectoral girdle is correct?

Accepted Answer

The pectoral girdle consists of the clavicles and scapulae, providing great mobility to the upper limb.

Question 8

Which bone marking on the scapula serves as the site of attachment for the biceps muscle of the arm?

Accepted Answer

Coracoid process

Question 9

A patient presents with a Colles’ fracture. Which bone is affected and what is the typical cause?

Accepted Answer

Radius; fall on an outstretched hand

Question 10

Which of the following carpal bones does NOT participate in forming the wrist joint?

Accepted Answer

Pisiform

Question 11

A patient with carpal tunnel syndrome is most likely to experience compression of which structure?

Accepted Answer

Median nerve

Question 12

Which part of the humerus is most frequently fractured and why is this clinically significant?

Accepted Answer

Surgical neck; it is a common site for fractures that may damage the axillary nerve

Question 13

Which of the following best describes the articulation between the head of the radius and the humerus?

Accepted Answer

The head of the radius articulates with the capitulum of the humerus.

Question 14

Which of the following is a correct sequence of bones from lateral to medial in the proximal row of the carpus?

Accepted Answer

Scaphoid, lunate, triquetrum, pisiform

Question 15

Which border of the scapula runs parallel to the vertebral column?

Accepted Answer

Medial (vertebral) border

Question 16

A patient is unable to abduct their arm at the shoulder joint. Which anatomical feature is most likely involved?

Accepted Answer

Glenoid cavity

Question 17

Which of the following statements about the clavicle is correct?

Accepted Answer

The sternal end is S-shaped and articulates with the sternum medially.

Question 18

Which of the following best describes the difference between true, false, and floating ribs?

Accepted Answer

True ribs attach directly to the sternum; false ribs attach indirectly; floating ribs have no sternal attachment.

Question 19

Which bone feature of the ulna forms the major portion of the elbow joint with the humerus?

Accepted Answer

Olecranon process

Question 20

A patient presents with numbness and tingling in the lateral three and a half fingers after repetitive wrist movements. Which anatomical structure is most likely compressed?

Accepted Answer

Median nerve in the carpal tunnel

Study Guide: Ch7CThe Skeleton – Thoracic Cage, Pectoral Girdle, and Upper Limb

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