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Trachea Definition – Definition, Function And Structure Of Trachea Get Whole Detail

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Trachea Definition – Definition, Function And Structure Of Trachea
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Trachea Definition – Definition, Function And Structure Of Trachea – Viral.Spot72
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What is the Trachea The trachea or windpipe is part of the respiratory system in the form of a tube. To be more clear, we will review it starting from its definition, function and structure. So, check out the review below.

Trachea

Definition of Trachea

The trachea or windpipe is part of the respiratory system in the form of a tube with a diameter of about 20 to 25 mm and a length of about 10-16 cm. The trachea is a long tube made up of 20 rings of tough, but flexible cartilage. The trachea is next to the esophagus, which is the airway.

Trachea (windpipe) function

Like the respiratory system

The trachea is the breathing tube located behind the larynx. Air passes through the trachea to the bronchi, and then to new alveoli to the lungs. Dust or dirt in the air will be filtered through the trachea. The trachea can also retain air moisture and play a role in regulating air temperature because it has mucus or what is commonly called mucus in the mucosa.

Participate in the digestive system

The wall of the trachea meets the wall of the digestive organ ie the throat. Indirectly the trachea also affects the human digestive process. If there is a ban in place trachea then there will be a problem the throat that meets it. For example, if there is a blockage in the airway, it will constrict to create a cough reflex so that the trachea and esophagus are cleared of foreign objects that are blocking the front.

It prevents harmful substances from entering the lungs

If a foreign object enters the respiratory tract and reaches the trachea, then the object will be caught and deposited in the sticky mucus of the trachea. then the substance or faeces will be removed from the body in the form of phlegm (because it mixes with tracheal mucus).

Structure of the windpipe (trachea)

The tube-shaped trachea is made up of 16 to 20 cartilaginous rings shaped like the letter C. However, these rings are not circular because the ends are not joined due to the attachment of the esophagus to the tracheal wall. This is to keep the trachea open and to make small changes in width if needed to allow air to flow in and out smoothly. The rings are held together by fibrous tissue.

The trachea is strong, but flexible. The trachea is made up of ciliated epithelium with goblet cells, these goblet cells will produce a thick fluid / mucus (mucus) that protects the tracheal wall. When it approaches the lungs, the structure of the trachea creates two branches, that is left and right and will communicate directly with the bronchial alveoli and the lungs.

The tracheal wall consists of three layers, namely the inner layer (mucus tissue), the middle layer (muscle tissue and cartilage), and the outer membrane (connective tissue).

Inner layer (Mucosal tissue)

The inner lining of the trachea is composed of ciliated columnar epithelial cells with goblet cells. This layer works to produce mucus or a thick fluid (fluid) that will protect the lining of the trachea and protect the respiratory tract from bacteria, dirt and dust.

Middle Layer (Muscle and Cartilage)

The middle layer or cartilage is the layer where the cartilage is found which is shaped like the letter C. This part of the cartilage is in the posterior or posterior area where the trachea meets the esophagus.

Next to the ring of cartilage there is muscle tissue in the form of smooth muscles, whose function is to move breathing, control coughing and gagging reflexes. In this layer there is also a structure that connects the cartilaginous rings of the trachea and protects the two ends of the ring so that they remain in good condition.

Outer Layer of Adventitia (Connective Tissue)

The outermost layer is made up of connective tissue. Nerves, blood vessels and fatty tissue can also be found in this layer.

Although there are those who say that the tracheal wall consists of four layers, if so, what does the 4th layer mean, that is the submucosal layer found after the mucosal layer. This submucosal layer is made up of connective tissue that is separated from the epithelium in the mucosal layer. This layer contains many blood vessels and nerves. This layer allows the tracheal mucosa to move.

That’s our Trachea review, hope it’s helpful…

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