Kinesiology 3222A/B Lecture Notes - Lecture 3: Adenoid, Arytenoid Cartilage, Cricoid Cartilage

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 3222A/B
• Professor: Dan Belliveau

Document Summary

Gas exchange: air blood (alveoli in lungs, blood cells (body) Oxygen utilization: by cells (cellular respiration) *internal respiration includes oxygen utilization during cellular respiration. Left lung has two lobes (due to heart) Conducting (how we get air through to alveoli: nasal cavities, terminal bronchioles (23 pairs) Respiratory: respiratory bronchioles, alveoli (gas exchange) *main separation between upper and lower is the glottis (where vocal cords are located) Resonation chamber for speech (which is why we sound funny when sick) Starts and at nostril (external nares) ends at choana (internal nares) Contains receptors of olfactory nerve, not included in respiratory system) midline by nasal septum. Mucous linings: olfactory mucosa, respiratory mucosa. Bony protrusions (chonchae: increases surface area, covered in epithelium, highly vascular, air is moistened and saturated. Paired air spaces within bones of skull functioning to: help warm the air (respiratory epithelium within each, participates in sound resonance, decreased weight of the skull. Made of skeletal muscle, lined with mucous membrane.