GROSS ANATOMY

Detailed explanation-1: -Olfaction, the sense of smell detects and discriminate odors as well as social cues which influence our innate re-sponses. The olfactory system in human beings is found to be weak as compared to other animals; however, it seems to be very precise.

Detailed explanation-2: -The perception of a smell occurs when substances in the air pass through the nose and stimulate the olfactory (smell) nerve. The experience of taste, or gustation, occurs when the taste buds in your mouth respond to substances dissolved in saliva.

Detailed explanation-3: -For example, humans detect odors through the olfactory epithelium of the nose, whereas most insects detect odors through their antennae.

Detailed explanation-4: -Your ability to smell comes from specialized sensory cells, called olfactory sensory neurons, which are found in a small patch of tissue high inside the nose. These cells connect directly to the brain. Each olfactory neuron has one odor receptor.