Question

A stimulus for the olfactory receptor is

• A. Taste
• B. Smell
• C. Touch
• D. All of the above

Answer 1

The correct option is B Smell

• The olfactory receptor neurons are located in a small region within the superior nasal cavity. This region is referred to as the olfactory epithelium.
• When the airborne molecules are inhaled through the nose, they pass over the olfactory epithelial region and the olfactory receptors are stimulated and in turn, the smell is perceived.
• Hence A stimulus for the olfactory receptor is smell.
• So, the correct answer is 'Smell'.