ATI RN
Questions About the Skeletal System Questions
Question 1 of 5
Concentric rings of bone matrix in compact bone are called
Correct Answer: A
Rationale: Lamellae are the concentric rings of bone matrix surrounding the central canal in osteons of compact bone, providing strength. Lacunae house osteocytes, canaliculi connect them, and the endosteum lines the interior, making 'lamellae' correct.
Question 2 of 5
The intake of Vitamin D and calcium of older people should be younger individuals.
Correct Answer: C
Rationale: Older people require greater vitamin D and calcium intake to maintain bone density, as absorption decreases and osteoporosis risk rises with age. Younger individuals need less supplementation due to higher efficiency, making 'greater than' likely correct (incomplete options assumed).
Question 3 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 4 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 5 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.