Human Nose (Research Paper)

Research Paper: Human Nose Noses are very important because they help you breathe by inhaling and exhaling. Not only do they help you breathe; noses help you taste and smell as well. The nose is located on the face, obviously, and it is a part of the Respiratory System. The human nose is made up of cartilage, which is the same material ears are made of, but also tissues. The upper part of the human nose is largely made up of bone. The human nose structure is very delicate. The nose of males is usually larger than those of females. Nose hairs are important because they prevent large particles from entering the lungs. An interesting fact about noses is that it helps detect dangerous chemicals in the air. When you’re sick with a stuffed up nose, the reason you cannot taste is because the combination of taste buds and the smell of food is what makes the brain recognize taste. The receptors that help you taste food are blocked, which is why you can’t taste. The human nose has two nostrils, which are separated by the nasal septum, which is made of cartilage. The nostrils allow air to be pulled into the nose and into the nasal cavity. When air enters through the nostrils, it flows through long hairs that trap large particles. There are tiny little hairs in the nose called cilia, and mucus grabs foreign/larger particles. At the back of the nasal cavity, air gets pulled into the larynx, and down to the lungs. The nasal cavity is a sort of entryway for air to come in, and it is lined with nasal mucus. The nasal cavity is a large space found in the head, and also above and behind the nose. From the nose, air passes through a muscular tube in the upper throat called the pharynx, which is a passageway for air. The air continues down to the larynx. Another important thing are sinuses, which are air pockets located in the bones of skull and face, which are connected to the nasal passages by small tube or channels, also known as Osteomeatal complex. These small channels let air flow from the nose into the sinuses, which allows drainage of mucus from each sinus into the nose. The air inside our sinuses exchanges with the air flowing through the nose constantly. All of our sinuses vary in size, just like our bodies. In the nasal passages, sinuses are lined by respiratory mucosa, a kind of tissue or membrane. Respiratory mucosa produces mucous very often; many quarts of mucous are produced every day. Mucous is moved by cilia to the back of the nose, therefore going to the back of our throats, which is then swallowed. Mucous can thicken and clog up our noses and throats, which can cause things such as Sinusitis. While there are no nose diseases, we can get bloody noses, or have our noses and sinuses clogged up from mucous congestion. Bloody noses are caused from many things, such as increasingly dry air, allergies, picking your nose, from mucous. If mucous dries up and cracks, it is very likely to bleed. The nose is full of many blood vessels; blood is supplied to the external part of the nose by branches of Ophthalmic and Maxillary arteries. A popular question is why do we sneeze? Sneezing is an expulsion of air from the lungs through the nose and mouth due to the irritation of the upper respiratory system and tissues. Sneezing is mainly caused by foreign particles going into your nose. In order to smell something, you smell the molecules from the item you smell. These molecules are in everything you smell and ear easily evaporated. The chemicals float through the air and into your nose.