ATI RN
Skeletal System Questions Questions
Question 1 of 5
Which one of the following bones is located in the lower arm?
Correct Answer: B
Rationale: The lower arm (forearm) includes the radius and ulna. The scapula is the shoulder blade, femur is the thigh, and humerus is the upper arm, making 'Radius' the correct answer.
Question 2 of 5
The ball and socket joint at the shoulder allows which of the following joint actions?
Correct Answer: A
Rationale: The shoulder (ball-and-socket) allows flexion (forward), extension (backward), abduction (away), adduction (toward), and rotation (circular), offering full range. B, C, and D are incomplete, making 'Flexion, extension, abduction, adduction and rotation' correct.
Question 3 of 5
One of the functions of bones is to make red blood cells. What is this process known as?
Correct Answer: B
Rationale: Haemopoiesis (or hematopoiesis) is blood cell formation in bone marrow, including red blood cells. Haemolysis is cell rupture, haematuria is blood in urine, and haemostasis is clotting—none match. Answer is B, per the document.
Question 4 of 5
What are the bones of the fingers known as?
Correct Answer: D
Rationale: Phalanges are the finger (and toe) bones, long bones in digits. Metacarpals are hand, carpals are wrist—neither are fingers. Answer is D, per the document.
Question 5 of 5
A synovial joint is also known as one of the following, which one?
Correct Answer: D
Rationale: Synovial joints (e.g., knee) are freely movable (diarthrotic) due to synovial fluid. Synarthrosis is immovable, others don’t apply. Answer is D, per the document.