ATI RN
Questions About the Skeletal System Questions
Question 1 of 5
The nasal septum is formed by the bone and the perpendicular plate of the
Correct Answer: D
Rationale: The nasal septum is formed by the vomer (lower part) and the perpendicular plate of the ethmoid (upper part), dividing the nasal cavity. Nasal bones are external, making 'vomer; ethmoid' correct.
Question 2 of 5
In anatomical position, identify the forearm bone that is most lateral?
Correct Answer: A
Rationale: In anatomical position (palms forward), the radius is lateral (thumb side) and the ulna medial (pinky side) in the forearm. Tibia and fibula are leg bones, making 'radius' correct.
Question 3 of 5
The most inferior portion of the coxal bone is the:
Correct Answer: C
Rationale: The ischium, the lower posterior part of the coxal bone, is the most inferior, forming the sitz bones. The ilium is superior, pubis anterior, and acetabulum central, making 'Ischium' correct.
Question 4 of 5
Which of the following is NOT a part of the coxal bone?
Correct Answer: A
Rationale: The coxal bone comprises ilium, ischium, and pubis, fusing at the acetabulum. The sacrum is a separate pelvic bone, not part of the coxal bone, making 'sacrum' correct.
Question 5 of 5
A freely movable joint is called a joint.
Correct Answer: D
Rationale: Freely movable joints are synovial (e.g., knee) and termed diarthrotic. Cartilaginous joints are slightly movable, so 'Both B and C are correct' reflects the synonymy of synovial and diarthrotic.