[Health Sciences 3300A/B] - Final Exam Guide - Ultimate 110 pages long Study Guide!

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

Document Summary

H e a l t h s c i e n c e s 3 3 0 0 a / b. External respiration (what the respiratory system is for: ventilation (pulmonary breathing, gas exchange: during ventilation. Structural: upper: nose, pharynx, lower: larynx, trachea, bronchioles, lungs. Glottis (vocal cords) is borderline of upper and lower. Functional: conducting (macroscopic structures): getting clean air to the lungs, humidi ed (added water vapour), warm. Terminal bronchioles: respiratory (microscopic): exchange co2 to o2. Nose (beginning of functional relationship: conducting: only external part, provides airway for respiratory system, moistens and warms air, lters air. Hairs in the nose trap the large particles = vibrissae. Respiratory mucosa throughout nasal cavity: resonation chamber for speech, olfactory receptors for olfactory nerve (cn i) Nasal cavity: starts at nostril (external nairs); ends (exits) at choana (internal nairs) (opens into nasal pharynx)