The process starts when oxygen from the port is taken in by the nose and mouth. The nostrils have a ne iirk of hairs that bend as filters and keep out dust and other impurities. The air passes through the nose into the nasal bodily cavity which is divided up into two sections by the nasal septum. The nose and nasal cavity argon lined with mucosal epithelium which has a rich engagement of blood vessels and contains glands. These glands secrete sticky mucus to help break moisture and warmth to the drawn in air and to equal any small particles. Any mucus is moved to the pharynx where it can be swallowed.
The air drawn in through the lips travels through to the buccal cavity. This cavity consists of the hard palate which separates the buccal cavity from the nasal cavity and the piano palate which leads to your throat.
The soft palate moves backwards when you swallow to block off the cavity to prevent food from moving into and blocking the air ways.
type O that is breathed in from the nose or mouth carries on its flow through the pharynx and larynx, down the windpipe and into the thorax. The trachea consists of C shaped rings of cartilage which give documentation and allows the neck to bend without cutting off the air flow. The oxygen flow carries on down the left and right elementary bronchi which enter the lungs through the hilum. The cartilage rings carry on in the bronchi which maintain the support. The right primary bronchus is wider, shorter and more vertical than the left bronchi. The right primary bronchus is divided into three secondary...If you want to get a full essay, order it on our website: Ordercustompaper.com
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