Question

question 3 of 10
the ______ routes nerve impulses from our senses.

a. brain stem
b. thalamus
c. corpus callosum
d. hippocampus

Explanation:

To solve this, we analyze each option:

• Option A: The brain stem regulates basic life functions (e.g., breathing, heart rate), not primarily routing sensory impulses.
• Option B: The thalamus acts as a relay station, receiving sensory information (except smell) and routing it to the appropriate areas of the cerebral cortex. This matches the description.
• Option C: The corpus callosum connects the two hemispheres of the brain, facilitating communication between them, not routing sensory impulses.
• Option D: The hippocampus is involved in memory formation (especially long - term memory) and spatial navigation, not sensory impulse routing.

Answer:

B. thalamus