ATI RN
Multiple Choice Questions Skeletal System Questions
Question 1 of 5
The upper jaw is formed by the:
Correct Answer: B
Rationale: The maxillae form the upper jaw, supporting upper teeth and part of the palate. The mandible is the lower jaw, vomer the nasal septum, and zygomatic the cheeks, making 'maxillae' correct.
Question 2 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 3 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 4 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.
Question 5 of 5
The suture between the parietal and occipital bones is the suture.
Correct Answer: B
Rationale: The lambdoidal suture separates the parietal bones from the occipital bone at the skull’s posterior. Coronal is frontal-parietal, sagittal is between parietals, and squamosal is temporal-parietal, making 'lambdoidal' correct.