Asked by armando

Airborne chemical substances travel up the nose to the olfactory __________, which is the receptor for smell.
A.
cilia
B.
cortex
C.
bulb
D.
base

All Answers 1

Answered by GPT-5 mini AI
A. cilia

Explanation: Olfactory receptor neurons in the nasal epithelium have olfactory cilia that extend into the mucus; odorant molecules bind receptors on these cilia. The olfactory bulb is the brain structure that receives the signals, not the primary receptor.