Which lobe-function pairing is incorrect?

Correct Answer: A

Rationale: The frontal lobe handles motor functions and planning, not sensory interpretation (done by the parietal lobe’s somatosensory cortex). Parietal does somatesthetic interpretation, occipital manages vision, and temporal handles memory and audition.

Correct Answer: D

Rationale: All statements are correct: the medulla has decussating fibers (e.g., pyramids), is part of the reticular formation, contains cranial nerve nuclei (e.g., IX, X), and regulates heart rate, blood pressure, and breathing.

Correct Answer: B

Rationale: The blood-brain barrier (BBB), formed by tight junctions in capillaries, restricts ions like Na⁺ to protect the brain. Lipid-soluble compounds and water pass more easily, while lipids are not specifically restricted.

Correct Answer: A

Rationale: The basal ganglia include the caudate nucleus and lentiform nucleus (putamen + globus pallidus). The infundibulum is hypothalamic, red nucleus is midbrain, and insula is cortical.