COMPLETE list with NOSE PARTS

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The nose is an organ that allows us to breathe and perceive a great variety of smells thanks to sense of smell. In addition to occupying the central part of the face, it is above the mouth and is connected with it, so that some food or harmful substances are indirectly sniffed before ingesting. Therefore, in addition to allowing us to breathe and smell, it is also a defense mechanism against poisons or harmful substances. Surely you never stopped to think how important your nose is! In this lesson from a TEACHER we will review the parts of the nose and we will see what functions each of them have. If you want to discover more interesting things about this organ, we invite you to continue reading!

Index

1. The nose: internal part and external part
2. The external nasal structure
3. The internal nasal structure

The nose It is an organ that is in the center of our face and in which, if you stop to think, we can differentiate two parts: a part

In the following sections we will look at the different parts of the outer portion of the nose and the different parts of the inner nose and how they connect to other parts of the body such as the lungs, mouth, or brain.

The parts of the nose that we can see that protrude from the face are called external nasal structure. The nose is a structure formed by a framework of bone and cartilage covered by very thin muscles that are in turn lined with a thin layer of skin.

First, the bones of the nose or nasal bones form the root of it, which joins the nose to the rest of the face. It is a set of bones that we can easily feel since, unlike the rest of the nose, they are hard. Although it may seem like something unimportant, the support or brassiere function of the nasal root is very valuable and, being small and fragile bones, can generate problems that can even hinder the ability to breathe of the person with deformations or deviations.

Second, if we go down to the tip, we will find the cartilaginous part of the nose, which we can differentiate because it is less hard and more elastic than the bony part. This part is called triangular cartilages or superior lateral cartilages. The set of nasal bones and triangular cartilages are called the nasal dorsum or nasal pyramid, by its shape. The triangular cartilages of the nose meet in the center of the back with the septum forming two valvesinternal valves) that are in charge of regulating, among other things, the passage of air.

Finally, already at the tip of the nose we find the alar cartilage, which forms the apex o tip of the nose and wings or fins. Their function is also of support but they have a main function to form external valves, which regulate the initial passage of air from the outside and cover the nostrils or nostrils, which are the openings of the nose responsible for capturing air and olfactory sensory stimuli that allow us to have a sense of smell.

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The part of the nose that is inside the nasal pyramid and that we cannot see with the naked eye is called the structure or inner nasal part. This part of the nose is mainly made up of the following structures: nasal cavity, nasal vestibule, septum, turbinates, olfactory bulb, and respiratory mucosa.

First of all, the nasal cavity or nasal roof It is located in the upper part of the nasal pyramid, on the inside of the nose. It is formed by the ethmoid and the sphenoid (two bones of the face) and below it is the palate of the mouth.

Second we can find the nasal vestibule, which is located just behind the openings of the nose (nostrils). This part of the nose is covered in skin with tiny villi called vibrisas, which are responsible for filtering the dust and other matters that the air we breathe carries. The movement of the vibrissae produces sneezing, whose function is to expel out of the nose dust, pollen or microorganisms that the body does not want to enter our lungs.

Then we find the nasal septum, which is a mixture of bones and cartilage and divides the nasal pyramid into two parts: right nostril and left nostril. The walls of the nostrils are formed by the turbinates. The turbinates are structures that are subdivided into the upper, lower and middle septum and are lined with mucosa. As you can imagine, the turbinates are responsible for the generation of mucus but, due to their meandering shape, they are also responsible for heating the air before it enters the body.

Finally, just above the nasal cavity we can find the olfactory bulb. The olfactory bulb is a structure that is closely related to the brain and is very close to it and is responsible for receiving the olfactory stimuli and transmit all the information that allows us to smell up to the upper (more complex) parts of the brain. These other parts of the brain can give odors names (citrus or spicy smell) or meanings (smell of a newborn baby or the smell of clean clothes).

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