The cervical trachea extends from the lower edge of the cricoid cartilage down to a plane passing from the top of the sternum to the superior edge of the second dorsal vertebra. Figure 21-2 The relations of the trachea, bronchi, esophagus, and aorta to one another. 4-13, 4-15 and 6-9).These cartilages give the trachea rigidity and prevent its collapse.

In the process, it warms and moisturizes the air and catches debris and microbes before they enter the lungs. Date: 17 May 2011: Source: File:Heart diagram-en.svg by ZooFari. It is also called a windpipe, and its function is to transport the air a person breathes in through his nose or mouth into the lungs. Anterior view. Structures are appearing as transparent in order to visualize overlapping structures, but are not transparent in reality. Figure 21-1 The trachea and esophagus in relation to vertebral and sternal levels in a subject in the erect position. The trachea is the tube in the throat that connects the mouth and nose to the lungs. English: Relations of the aorta, trachea, esophagus and other structures of and around the heart. The trachea is composed of about 20 rings of tough cartilage. The trachea is a cartilaginous tube formed by a series of tracheal cartilages, joined together by annular ligaments (Figs. The trachea then divides into two smaller tubes called bronchi: one bronchus for each lung. The trachea, commonly known as the windpipe, is the large tube that delivers air from the upper respiratory tract (the nasal passages, throat, and larynx) to the bronchi (the two large airways that branch off into each lung). The cricoid cartilage is located immediately below the vocal cords followed by the other cartilaginous rings which reinforce the anterior and lateral aspects of the trachea. In the mouse, the trachea has about 15 cartilages with an approximate internal diameter of 1.5 mm. Without the trachea, the lungs do not receive oxygen, and humans cannot survive. Instant anatomy is a specialised web site for you to learn all about human anatomy of the body with diagrams, podcasts and revision questions In the right anterior oblique view, the right lobar and segmental bronchi are omitted because they are not clearly visible in radiographs of this view.