GROSS ANATOMY

Detailed explanation-1: -Nostrils (nares): These are the openings to the nasal cavities that are on the face. Septum: The septum is made of bone and firm cartilage. It runs down the center of your nose and separates the two nasal cavities.

Detailed explanation-2: -Air enters the nasal cavity from the outside through two openings: the nostrils or external nares. The openings from the nasal cavity into the pharynx are the internal nares.

Detailed explanation-3: -This wall of bone and cartilage is called your septum. The septum acts as the divider between your left and right nostril and runs down the middle of your nose… sometimes. Most people, approximately 80%, have a deviated septum which is the displacement of the septum.

Detailed explanation-4: -Look in a mirror, and you’ll notice that most sensory organs come in pairs. Having two eyes lets us perceive depth, and two ears are useful for locating sounds. But why two nostrils? Now neuroscientists have found evidence that this expands the range of scents we can smell.

Detailed explanation-5: -Our nostrils have evolved to perform both roles, although each nostril prefers one role over the other at different times. At any given moment, one nostril may draw in more air than the other, whereas the other nostril will draw in less air, which allows it to better pick up certain scents in the environment.