The nose and Sense of Smell

 The nose is the organ responsible for the sense of smell. The cavity of the nose is lined with mucous membranes that have smell receptors connected to the olfactory nerve. The smells themselves consist of vapours of various substances. The smell receptors interact with the molecules of these vapours and transmit the sensations to the brain. 

Structure of Nose

The nose also has a structure called the vomeronasal organ whose function has not been determined, but which is suspected of being sensitive to pheromones that influence the reproductive cycle. The smell receptors are sensitive to seven types of sensations that can be characterised as camphor, musk, flower, mint, ether, acrid, or putrid. The sense of smell is sometimes temporarily lost when a person has a cold. Dogs have a sense of smell that is many times more sensitive than man's.

Human nose structure

Human life will cease to exist in earthly atmosphere without fresh air. You get oxygen from the fresh air through nose. Here, you can call oxygen as the elixir of life.

Functions of the Nose

Absorption of Air from Atmosphere: The most prominent role of the nose is to absorb raw air from the atmosphere. The nose also processes it as per the requirements of the body.

Filtering Air: The function of nasal cavity is to filter the air from physicalimpurities. For this purpose, there are the fine hairs or cilia in the nasal cavity.

Humidification and Warming of Air: After its purification, the air enters the middle nose for humidification. Meanwhile, the nasal cavity also warms the air to match body's internal temperature.

Olfactory Function: Nose is also the house for smell. So, you can define nose as the olfactory organ. Surely, none of you dare to enter a multi cuisine facility when there is blockage in the nose. The entire perception and appetite for the food goes vain without capturing its smell.

How to Fight Nose Diseases

Nose is the first organ of the respiratory system and has no excuse from infections and disorders. Inability to detect smell and to identify taste indicates a nose disorder. It is the most crippling disorders across the United States.

This condition also has a link with a number of congenital nose conditions. However, the most common among them is the deviation of the nasal septum. Such an abnormality devastates the looks. Meanwhile, it predisposes the individual to a number of disorders. They include epistaxis or nose bleeds, sinusitis or inflammation of the nasal sinuses, etc.

Common cold or rhinitis is quite common among all classes of people. It is because the nose counteracts with outside infection before any other organ of the body. The condition stays for a few days if you cure it with medication.

However, the prolonged use of nasal inhalers and sprays may lead to nasal polyps. In this case, the three ball-shaped turbinals inside the nose bulge out. As a result, they obstruct air flow.

You cannot take the nose for granted. It is an organ that can develop tumours and fibromas. These conditions may risk the existence of an individual. They need due care and diligence for treatment. Your nose executes the key process of living, that is, taking in oxygen and giving out carbon-dioxide.