Question 1

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

Accepted Answer

It protects the vital organs of the thoracic cavity and supports the shoulder girdles and upper limbs.

Question 2

A patient receives a blow to the chest at the level of the xiphoid process. Which of the following is a potential consequence of this trauma?

Accepted Answer

Massive hemorrhaging due to damage to the underlying liver or heart

Question 3

Which ribs are classified as 'true ribs' and how do they attach to the sternum?

Accepted Answer

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

Question 4

During CPR, why is it important to place your hands 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 costal facet and the body (demifacets) of two adjacent vertebrae

Question 7

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

Accepted Answer

The socket of the shoulder joint is shallow, allowing a great degree of mobility.

Question 8

Which bone is the only bone of the arm and what are its main articulations?

Accepted Answer

Humerus; articulates superiorly with the glenoid cavity of the scapula and inferiorly with the radius and ulna

Question 9

A Colles’ fracture is most likely to occur in which bone and under what circumstance?

Accepted Answer

Radius; falling on an outstretched hand

Question 10

Which of the following carpal bones is NOT part of the proximal row (lateral to medial)?

Accepted Answer

Trapezium

Question 11

Which feature of the scapula serves as the site of attachment for the biceps muscle of the arm?

Accepted Answer

Coracoid process

Question 12

A patient presents with tingling and numbness in the hand due to compression of the median nerve. Which anatomical structure is most likely involved?

Accepted Answer

Carpal tunnel

Question 13

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

Accepted Answer

True ribs attach directly to the sternum by individual costal cartilages, while false ribs attach indirectly or not at all.

Question 14

Which bone marking on the humerus is most frequently fractured?

Accepted Answer

Surgical neck

Question 15

Which of the following is a function of the costal cartilages in the thoracic cage?

Accepted Answer

They provide flexibility and allow the thoracic cage to expand during respiration.

Question 16

Which of the following statements about the radius and ulna is correct?

Accepted Answer

The radius is lateral and its head articulates with the capitulum of the humerus.

Question 17

A patient has a fracture at the sternal angle. Which two bones are joined at this landmark?

Accepted Answer

Manubrium and body of the sternum

Question 18

Which of the following best describes the arrangement of the bones in the hand?

Accepted Answer

8 carpals, 5 metacarpals, 14 phalanges

Question 19

Which anatomical feature of the rib articulates with the transverse costal facet of the thoracic vertebra?

Accepted Answer

Tubercle

Question 20

Which of the following is a correct statement about the glenoid cavity?

Accepted Answer

It is a shallow socket that allows a great degree of mobility for the humerus.

The Skeleton: Thoracic Cage and Pectoral Girdle

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