Rostral vs Caudal meaning.

• A. Rostral means toward the spine.
• B. Rostral means toward the tail.
• C. Rostral means toward the front.
• D. Rostral means the front lobes of the brain.

Answer: (D)

Rostral and caudal describe directions along the nervous system. Rostral means toward the front of the head or toward the nose, essentially the anterior direction. Caudal means toward the back or tail, the posterior direction. In the brain this maps to rostral = anterior (toward the frontal regions) and caudal = posterior (toward the occipital region). Saying rostral means the front lobes of the brain is imprecise because rostral is a directional descriptor, not a single brain region; it can point toward any structures at the front, not just the frontal lobes.