ATI RN
Questions About the Skeletal System Questions
Question 1 of 5
Cells that break down bone tissue are called:
Correct Answer: D
Rationale: Osteoclasts are specialized cells that resorb or break down bone tissue, aiding in remodeling and calcium release. Osteoprogenitor cells are stem cells, osteoblasts build bone, and osteocytes maintain it, making 'osteoclasts' correct.
Question 2 of 5
The cranial bone(s) that forms the most posterior portion of the skull is/are the bone(s).
Correct Answer: B
Rationale: The occipital bone forms the posterior skull base and back, including the foramen magnum. The ethmoid is anterior, parietal is lateral, and sphenoid is central, making 'occipital' correct.
Question 3 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 4 of 5
An abnormal lateral curvature of the spine is
Correct Answer: B
Rationale: Scoliosis is an abnormal lateral (side-to-side) spine curvature. Kyphosis is forward curvature, lordosis is inward, and hunchback is colloquial for kyphosis, making 'scoliosis' correct.
Question 5 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.