Breathing out (UEB Contracted)

By: Rnib Bookshare

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Synopsis: This diagram shows the outline of the chest with the lungs and respiratory tract in cross section. A locator dot and title are shown. These must always be at the top left of the page when the image is the right way up. The chest is facing you and is surrounded by an image border. There are also two thumbnail diagrams at the bottom of the page. At the top centre of the page is the larynx. The tract runs down and divides, going left and right into each lung. The cut sections of the ribs surround the lungs to the left and right. Between them towards the bottom of the diagram is a curved horizontal thick line representing the diaphragm. The ribs have fallen downwards and inwards, and the diaphragm has relaxed resulting in it rising. This decreases the capacity of the chest which forces air out. The two thumbnail diagrams at the bottom of the page show the shape of the chest when breathing in on the left and out on the right.

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