ATI RN
Questions for Skeletal System Questions
Question 1 of 5
The hip and shoulder are joints.
Correct Answer: B
Rationale: The hip and shoulder are ball-and-socket joints, with the femur/humerus head fitting into the acetabulum/glenoid cavity, allowing multi-directional movement. Saddle, hinge, and condyloid are different types, making 'ball and socket' correct.
Question 2 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 3 of 5
The vomer forms part of the orbit of the eye.
Correct Answer: B
Rationale: The vomer forms the nasal septum, not the orbit (eye socket), which includes bones like the ethmoid and maxilla. This makes 'False' correct.
Question 4 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 5 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.