To shrug your shoulders is an elevation movement.

Correct Answer: A

Rationale: Shrugging raises the shoulders, an elevation movement of the scapulae. This is correct, making 'True' the answer.

Correct Answer: A

Rationale: Sesamoid bones (e.g., patella) are embedded in tendons, absorbing impact and protecting tendons during flexion (e.g., knee movement). B, C, and D apply to other bone types, making 'Absorb impact forces and protect tendons as they flex' correct.

Correct Answer: C

Rationale: Extension is straightening a joint, increasing the angle (e.g., extending the arm). A is rotation, B is adduction, and D is flexion, making 'Straightening limbs at a joint' the best description.

Correct Answer: A

Rationale: A trochanter is a bony projection on the femur—greater (lateral) and lesser (medial)—for muscle attachment, not articulation or a groove. It’s specific to the femur, not pelvis. Answer is A, per the document.

Correct Answer: C

Rationale: The mandible’s temporomandibular joint (with the temporal bone) is synovial, allowing chewing/speaking. Sphenoid, maxilla, and hyoid lack synovial joints (sutures or none). Answer is C, per the document.