KINESIOL 2YY3 Lecture Notes - Lecture 23: Kyphosis, Motor Cortex, Partial Pressure
7 Dec 2017
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23. 1 functions of the respiratory system: ventilation: movement of air into and out of lungs. External respiration: gas exchange between air in lungs and blood. Transport of oxygen and carbon dioxide in the blood. Internal respiration: gas exchange between the blood and tissues. Respiratory system functions: regulation of blood ph: altered by changing blood co2 cellular (cid:373)eta(cid:271)olis(cid:373) Breathing get rid of extra co2, keep build up of protons @ homeostatic level. Naturally increasing breathing, when exercise: production of chemical mediators: ace a(cid:374)giote(cid:374)si(cid:374) (cid:272)o(cid:374)(cid:448)erti(cid:374)g e(cid:374)z(cid:455)(cid:373)e i(cid:374)(cid:272)reases (cid:271)lood pressure. Lungs secrete enzyme convert angiotensin, increase blood pressure, lung secretes this, stimulate smooth muscle contraction arteriole side. Ace inhibitor for patients w/ high blood pressure, going after the enzyme: voice production: movement of air past vocal folds makes sound and speech. Move air out of trachea: olfaction: smell occurs when airborne molecules are drawn into nasal cavity. Particles in air, form chemical bonds with receptors in nasal cavity.
