ANP 1105 Lecture Notes - Lecture 1: Trachea, Thoracic Cavity, Whiskers
11 Dec 2015
School
Department
Course
Professor
Document Summary
Main function: is to supply blood with oxygen and dispose of carbon dioxide. Two zones: and warms the air: nose, conductive zone: passage ways; makes the air more lung friendly (cleanse, humidify, The only externally viewable part of the respiratory system. Functions: airway for respiration, moistens and warm air that comes in, filters and cleans the air, resonating chamber for speech, olfactory (smell) receptors, holds up your glasses. Is divided into the external nose and the internal (nasal cavity) nose. The surface features of the external nose include the root, bridge, dorsum nasi, and apex. Skin covering the anterior and lateral aspects of the nose contains many sebaceous glands, keeping it oily. Vibrissae: nose hairs, found mainly in the nasal vestibule (which is also lined with sebaceous glands, they are involved in trapping dust and small insects and etc. Olfactory mucosa: found at the top of the nose, and you can actually see it.
