ATI RN
Questions for Skeletal System Questions
Question 1 of 5
Osteocytes live in small spaces called canaliculi.
Correct Answer: B
Rationale: Osteocytes live in lacunae, small spaces within bone matrix. Canaliculi are channels connecting lacunae, not housing cells, making 'False' correct.
Question 2 of 5
The hand bones are the metacarpals.
Correct Answer: B
Rationale: The hand includes carpals (wrist), metacarpals (palm), and phalanges (fingers). Saying only metacarpals are hand bones is incomplete, making 'False' correct.
Question 3 of 5
The big toe and thumb both have only two phalanges.
Correct Answer: A
Rationale: The big toe (hallux) and thumb each have 2 phalanges (proximal, distal), unlike other digits with 3. This is correct, making 'True' the answer.
Question 4 of 5
Bones assist in all phases of respiration.
Correct Answer: B
Rationale: Bones (ribs, sternum) assist inhalation/exhalation by moving, but not all respiration phases (e.g., gas exchange in lungs). This makes 'False' correct.
Question 5 of 5
Which one of the following bones is located in the head?
Correct Answer: D
Rationale: The cranium, part of the skull, is located in the head, protecting the brain. The scapula is the shoulder, phalanges are fingers/toes, and tarsals are ankle bones, making 'Cranium' correct.