Which bone of the head has a synovial joint?

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.

Correct Answer: C

Rationale: A trabeculum (trabeculae) is an internal structure in spongy bone, not a surface projection. Trochanter, tubercle, and tuberosity are projections. Answer is C, per the document.

Correct Answer: D

Rationale: A facet is a flat projection for articulation (e.g., vertebral facets). Fossa (depression), fissure (slit), and foramen (hole) are not projections. Answer is D, per the document.

Correct Answer: C

Rationale: Pelvic girdle: coxal bones; pectoral girdle: clavicles, scapulae. Manubrium, cervical, coccyx, sacrum are axial. Answer is C, per the document.

Correct Answer: C

Rationale: Articulation is the joint or contact between two bones (e.g., knee). Other options describe different connections. Answer is C, per the document.