Which of the following is a function of the skeletal system?

Correct Answer: A

Rationale: Haemopoiesis (blood cell formation) occurs in bone marrow, producing red and white blood cells. Haemostasis is blood clotting, peristalsis is digestive movement, and glycogenolysis is glucose breakdown—none are skeletal functions. Answer is A, as per the document.

Correct Answer: A

Rationale: Pronation/supination occur in the forearm, with radius rotating over ulna. Foot does inversion/eversion, thigh and wrist don’t pronate/supinate. Answer is A, per the document.

Correct Answer: B

Rationale: The lateral condyle of the femur articulates with the tibia at the knee joint. Tuberosity, trochanter, and tubercle are muscle attachments, not articulations. Answer is B, per the document.

Correct Answer: D

Rationale: Osteoclasts reabsorb bone, breaking it down. Osteons are structures, osteoblasts form bone, osteocytes maintain it. Answer is D, per the document (note: text error corrected—osteoblast matures to osteocyte, not osteoclast).

Correct Answer: B

Rationale: Appendicular skeleton includes pectoral girdle, phalanges, and lower limbs. Thoracic cage (ribs, sternum) is axial. Answer is B, per the document.