Health Sciences 3300A/B Lecture Notes - Lecture 6: Nasal Cavity, Air Sacs, Bronchus

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 3300A/B
• Professor: Dan Belliveau

Document Summary

Overall function of rs a ventilation system that exchanges oxygen from the air with c02 in our blood, to provide our body with oxygenated blood and to promote cellular respiration within cells. * the glottis divides upper and lower tract. * conducting (gets air into lungs) starts in nasal cavities and goes into fine branches of terminal bronchi. * respiratory (responsible for gas exchange) respiratory bronchioles and alveoli (alveolar sacs) Moistens and warms air to get it a homeostatic temperature. Filters air dust, and debree are collected and filtered through tiny hairs within the nasal cavity. * lateral nasal cartilage and septal cartilage make up dorsum nasi. * ala soft part of nose made from dense fibrous connective tissue and adipose (fat) tissue. * philtrum the depression on the superior lip (infranasal depression) Vibrissae (long stiff hairs) that trap large particles. * olfactory mucosa connective tissue and epithelium. * gyri and sulci are made by conchae protrusions (inferior, middle, superior)