Besides the brain, the skull also protects ...

Correct Answer: D

Rationale: The skull houses and protects sense organs (e.g., eyes in orbits, ears in temporal bones) alongside the brain. Lungs and diaphragm are thoracic, cells are everywhere—not skull-protected—making 'the sense organs' correct.

Correct Answer: D

Rationale: A facet is a flat or shallow surface on a bone where articulation occurs, such as in vertebral joints. A tubercle is a small projection, a fossa is a depression, and a fovea is a small pit—none describe a shallow articulating surface as precisely as facet.

Correct Answer: A

Rationale: Gliding joints allow sliding movements, as seen in the intercarpal joints (between wrist bones). The radiocarpal joint is a condyloid joint, intervertebral joints are cartilaginous (amphiarthroses), and phalangeal joints are hinges—not gliding.

Correct Answer: C

Rationale: The tibia, a long bone, has a diaphysis (shaft), epiphyses (ends), articular cartilage (at joints), and a medullary cavity (marrow space). Scapula and sacrum are flat/irregular bones, and the patella (sesamoid) lacks a medullary cavity.

Correct Answer: C

Rationale: The talus, in the ankle, articulates distally with the calcaneus (heel bone) below it, forming the subtalar joint. The navicular and cuneiforms are more distal, and the first metatarsal is further forward.