The functions of bones may be stated as:

Correct Answer: D

Rationale: Bones support, store minerals/fat, enable movement, produce blood cells (haemopoiesis), and protect organs—not hormones or leverage alone. Answer is D, per the document.

Correct Answer: D

Rationale: The hyoid, in the neck, supports the tongue, superior to the larynx, not articulating with other bones. Answer is D, per the document.

Correct Answer: B

Rationale: The cranium (skull’s cranial bones) encases and protects the brain. Calcium is a mineral, cerebrum and cerebellum are brain parts, not bones, making 'The cranium' correct.

Correct Answer: C

Rationale: A joint (articulation) is where two bones meet (e.g., knee), including hinge or ball-and-socket types (A, B). Tendons connect muscle to bone, not joints, making 'The place where two bones are joined' correct.

Correct Answer: B

Rationale: Synovial fluid, which lubricates freely movable diarthrotic joints, is secreted by the synovial membrane lining the joint cavity. Menisci are fibrocartilage pads aiding stability, bursae are fluid-filled sacs reducing friction outside joints, and articular cartilage provides a smooth surface but doesn’t produce fluid.