What is the anatomy of the trachea?

What is the anatomy of the trachea?

Your trachea sits in your lower neck and upper chest, below your larynx. It is behind the notch at your lower throat, between the inside edges of your collarbones. In a diagram of your trachea and other respiratory organs, you can see the trachea between the top lobes of the lungs.

What are the 4 functions of the trachea?


  • Functions of the trachea.
  • Air conduction. The primary function of the trachea is to provide air passage to your lungs for respiration, i.e. to inhale air rich in oxygen and exhale carbon dioxide.
  • Protection. The lining of the trachea has a sticky mucous lining that traps foreign substances.
  • Thermoregulation.

What are the four layers of the trachea?

The trachea is anterior to the esophagus and one of the few patently open tubes in the body. It has four layers: mucosa, submucosa, hyaline cartilage and adventitia. The mucosa is mostly PSCCE.

Where is the trachea located and what is its function?

The trachea is a tube-like structure within the neck and upper chest. It transports air to and from the lungs when a person breathes. When a person inhales, air travels through the nose or mouth, down the trachea, and into the lungs.

What is around the trachea?

The trachea is surrounded by 16–20 rings of hyaline cartilage; these ‘rings’ are 4 millimetres high in the adult, incomplete and C-shaped. Ligaments connect the rings. The trachealis muscle connects the ends of the incomplete rings and runs along the back wall of the trachea.

What is lumen in trachea?

The trachea is lined with a moist mucous-membrane layer composed of cells containing small hairlike projections called cilia. The cilia project into the channel (lumen) of the trachea to trap particles.

What is the deepest layer of the trachea?

Four layers of tissues make up the walls of the trachea:

  • The mucosa is the innermost layer and consists of ciliated pseudostratified columnar epithelium with many goblet cells.
  • Deep to the mucosa is the submucosa layer, which is made of areolar connective tissue containing blood vessels and nervous tissue.

Where does the trachea start and end?

It begins at the inferior border of the larynx (cricoid cartilage) located at the level of vertebra C6. It ends at the level of the jugular notch of sternum, which represents the upper border of the superior mediastinum. The thoracic part of trachea, which is located within the superior mediastinum of the thorax.

What is another name of trachea?

The trachea, also known as the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.

What does trachea spell?

Trachea is another name for windpipe, which is the tube that connects your larynx to your primary bronchi, just before your lungs.

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