Receptive aphasia:

Correct Answer: C

Rationale: Receptive aphasia (Wernicke’s) involves the posterior superior temporal gyrus (near Sylvian fissure, B partial), not frontal lobe (A, Broca’s). Patients don’t comprehend commands (C, correct), unlike motor aphasia (expression issue). Parietal infarction (D) may contribute, but temporal is key. C is correct.

Correct Answer: B

Rationale: The frontal lobe controls behavior (B, prefrontal), not taste (A, temporal), has motor areas (C, partial), and memory loss (D) is more temporal/hippocampal. B is most accurate.

Correct Answer: C

Rationale: The ectoderm gives rise to the nervous system and the integumentary system (skin, hair, nails) (C). The digestive (A) and respiratory (B) systems primarily develop from the endoderm, while the urinary (D) system arises from the mesoderm and endoderm. C is correct.

Correct Answer: A

Rationale: The anterior horn (A) contains somatic motor neurons controlling skeletal muscles. The posterior horn (B) processes sensory input, lateral horn (C) houses autonomic neurons, and alar plate (D) is an embryonic term region, not adult structure. A is correct.

Correct Answer: C

Rationale: Autonomic ganglia (C) contain neurons regulating homeostasis (e.g., heart rate, digestion) via the autonomic nervous system. Sensory (A) and dorsal root ganglia (B) handle sensation, and cranial nerve ganglia (D) vary. C is correct.