ATI RN
Questions for Skeletal System Questions
Question 1 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 2 of 5
What type of bone is the Patella?
Correct Answer: D
Rationale: The patella (kneecap) is a sesamoid bone, embedded in the quadriceps tendon, enhancing leverage and protecting the knee. Flat, short, and irregular don’t apply, making 'Sesamoid' correct.
Question 3 of 5
During 'arm side raises' exercise which involves the shoulder ball and socket synovial joint, which joint action is being used?
Correct Answer: B
Rationale: Arm side raises lift arms laterally (abduction) and lower them (adduction) using the shoulder’s ball-and-socket joint. Extension/flexion is forward/back, rotation is circular, making 'Abduction and Adduction' correct.
Question 4 of 5
Where do osteocytes reside?
Correct Answer: D
Rationale: Osteocytes live in lacunae, cavities within osteon lamellae (compact bone) or trabeculae (spongy bone). Lamellae are layers, endosteum lines cavities, and trabeculae are spongy structures—not residences. Answer is D, per the document.
Question 5 of 5
Which of the following comprise seven bones?
Correct Answer: A
Rationale: Cervical vertebrae number 7 (C1-C7). Carpals are 8 per wrist, cranial bones are 8, lumbar vertebrae are 5. Answer is A, per the document.