ATI RN
Multiple Choice Questions Skeletal System Questions
Question 1 of 5
Identify an example of a cranial bone.
Correct Answer: A
Rationale: Cranial bones form the cranium: frontal, parietal, occipital, temporal, sphenoid, and ethmoid. The ethmoid is cranial, while nasal, vomer, and zygomatic are facial bones, making 'ethmoid' correct.
Question 2 of 5
The adult sacrum consists of vertebrae fused together.
Correct Answer: A
Rationale: The sacrum in adults is 5 vertebrae fused into one bone, supporting the pelvis. The total spine has 33 vertebrae, but only 5 form the sacrum, making '5' correct.
Question 3 of 5
Identify the three sections of the sternum from most superior to most inferior.
Correct Answer: D
Rationale: The sternum has three parts, from superior to inferior: manubrium (top, rib 1-2 attachment), body (middle, rib 3-7 attachment), and xiphoid process (bottom). 'manubrium, body and xiphoid process' is the correct order.
Question 4 of 5
In one hand, there are carpals, metacarpals and phalanges.
Correct Answer: C
Rationale: One hand has 8 carpals (wrist), 5 metacarpals (palm), and 14 phalanges (fingers: 2 in thumb, 3 each in others). '8-5-14' matches this anatomy.
Question 5 of 5
Explain why female hips are broader then male hips.
Correct Answer: A
Rationale: Female hips are broader due to flared iliac bones, adapting the pelvis for childbirth. Ischial and pubic differences exist, but ilium flaring is primary; thickness is unrelated, making 'Female iliac bones are more flared' correct.