Why is the nose considered the quickest route to the brain of all sense organs?
A)Odorants cause quick reactions in animals and humans
B) Pheromones are hormone-like chemicals that organize human sexual and aggressive behavior.
C) The olfactory bulb and other areas of the frontal cortex receive signals directly from the nose, bypassing the thalamus.
D) Chemical bonding in the nose occurs more quickly than transduction in the other senses.

Question

Quizplus · Accepted Answer

The olfactory bulb, which is part of the brain, receives signals directly from the nose without the signals having to pass through the thalamus, which is the case for other sensory signals. This direct connection makes the nose the quickest route to the brain.

Why Is the Nose Considered the Quickest Route to the Brain