anatomy of trachea

Expert Solution

* The trachea(windpipe) comes under lower respiratory tract which begins just under the larynx and runs behind the breastbone(sternum).

* It connects larynx to the bronchi of lungs allowing the passage of air. It extends from larynx and branches into two primary bronchi. At the top of trachea is a cricoid cartilage attaches to larynx.

* The length of trachea is 10-11 cms and inner diameter is 1.5 to 2 cms(in adults). It is wider in males compared to females and it is made up of 16-22 rings of hyaline cartilage.

* There is only one complete tracheal ring and others are being incomplete made of reinforcing cartilage. These are C shaped rings which gives C shape due to no attachment at the end of rings.

* The trachealis muscle joins the ends of rings and vertically joined by the fibrous connective tissue(annular ligaments of trachea). The epiglottis closes the opening of larynx during swallowing.

Sydney Mullin answered 10 months ago

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