ATI RN
Questions About Skeletal System with Answers Questions
Question 1 of 5
In which one of the following structures do osteocytes reside? In the
Correct Answer: B
Rationale: Osteocytes reside in lacunae, small pits in bone matrix (compact or spongy). Haversian canals hold vessels, trabeculae are spongy structures, and endosteum lines cavities—not homes for osteocytes. Answer is B, per the document.
Question 2 of 5
In which structure are osteoclasts and osteoblasts found?
Correct Answer: A
Rationale: Osteoblasts (bone-forming) and osteoclasts (bone-resorbing) are in the periosteum, the membrane around bones. Lacunae hold osteocytes, not these cells. Answer is A, per the document.
Question 3 of 5
Freely moveable joints are also known as
Correct Answer: D
Rationale: Synovial joints are freely movable (diarthrotic) due to synovial fluid, unlike fibrous (immovable), cartilaginous (slightly movable), or amphiarthroses (slightly movable). Answer is D, per the document.
Question 4 of 5
Which of the following is an example of a synovial joint? The joint between the:
Correct Answer: D
Rationale: The proximal radioulnar joint (synovial) allows pronation/supination. Tibia-fibula (syndesmosis), sternum-rib (cartilaginous), and vertebrae (cartilaginous) aren’t synovial. Answer is D, per the document.
Question 5 of 5
On which bone is the greater trochanter found?
Correct Answer: B
Rationale: The greater trochanter is a lateral projection on the proximal femur for muscle attachment. Only the femur has trochanters. Answer is B, per the document.