Health Sciences 3300A/B Lecture Notes - Lecture 1: Recurrent Laryngeal Nerve, Posterior Cricoarytenoid Muscle, Superior Laryngeal Nerve
19 Sep 2016
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Document Summary
Ventilation (breathing) take in oxygen rich blood. Gas exchange air: blood (lungs) the above 2 are external esp blood: cells (body) Oxygen utilization by cells (cellular resp. ) the bottom 2 are internal resp. Lower resp tract larynx trachea bronchioles lungs left lung is smaller and has two lobes (b/c of heart) right is bigger and has 3 lobes. * glottis separates upper and lower tracts where vocal cords are found. Respiratory respiratory bronchioles alveoli gas exchange in the lungs. Root ( part of frontal lobe), b/w eyebrows. Philtrum (midline above upper lip), during development bones fuse in the center and creates this depression. Starts at nostril (external nares), ends at choana (internal nares) Mucous linings olfactory mucosa contains receptors of olfactory nerves has nothing to do w/ respiration resp mucosa- traps small particles. Bony protrusions- chonchae increases surface area covered in epithelium highly vascular air is moistened and saturated.
