The skull is what type of joint?

Correct Answer: B

Rationale: The skull’s joints are sutures, fibrous and fixed (immovable) in adults, locking cranial bones. Sliding (gliding) and synovial are movable, and slightly movable doesn’t fit, making 'Fixed Joints' correct.

Correct Answer: C

Rationale: Pronation (palm down) and supination (palm up) involve radius crossing over ulna, twisting the wrist while the elbow stays fixed. Other options describe flexion, eversion/inversion, or circumduction. Answer is C, per the document.

Correct Answer: B

Rationale: A fossa is a depression in a bone (e.g., mandibular fossa). Tuberosity, tubercle, and condyle are projections, not depressions. Answer is B, per the document.

Correct Answer: D

Rationale: The scapula (shoulder blade) is in the shoulder girdle, part of the appendicular skeleton. ‘Shoulder girdle’ is more specific than ‘appendicular.’ Answer is D, per the document.

Correct Answer: A

Rationale: A fossa is a depression (e.g., for articulation), not a muscle attachment projection. Tuberosity, tubercle, and trochanter are projections for muscles. Answer is A, per the document.