Question 3 . General questions: A. Describe the major structures of the respiratory system. The respiratory system brings oxygen into the body for transportation to the cells and it removes carbon dioxide and some water waste from the body. Upper respiratory tract - consists of the nose, mouth, pharynx, epiglottis, larynx, and trachea. Lower respitatory tract - consists of the bronchial tree and lungs, located within and protected by the thoracic cavity which is also known as the rib cage. The nose - which is where air enters the body and passes through the nasal cavity. The tonsils - which form a protective circle of lymphatic tissue around the entrance to the respiratory system. The paranasal sinuses - are air filled cavities lines with mucous membrane and are located in the bones of the skull. The pharynx - commonly known as the throat, which receives air after it passes through the nose. The larynx - commonly known as the voice box, which is a triangular chamber located between the pharynx and the trachea B. Use your ebook, an online authoritative source, or a medical dictionary to define the
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- Summer '17
- Upper respiratory tract