Kinesiology 2230A/B Lecture Notes - Lecture 5: Phosphate, One Unit, Carotid Body
12 Oct 2017
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Date: friday, feb 3rd, 2017: this system is involved in the uptake portion of vo2, removal of co2. Laid out flat: size of a tennis court 90 sqm. Dead space (vd): a(cid:396)eas i(cid:374) the pul(cid:373)o(cid:374)a(cid:396)(cid:455) se(cid:395)ue(cid:374)(cid:272)e (cid:449)he(cid:396)e (cid:374)o gas e(cid:454)(cid:272)ha(cid:374)ge o(cid:272)(cid:272)u(cid:396)s (cid:894)o(cid:1006) a(cid:374)d co(cid:1006) a(cid:396)e(cid:374)(cid:859)t diffusing) Non-perfused alveoli & respiratory passages where no gas exchange occurs. Gas exchange only occurs at the alveolar networks/sacs which are surrounded by dense networks of pulmonary capillaries, the rest is dead space. Only air entering perfused alveoli or the alveolar volume (va) takes part in gas exchange. High intensity exercise is lots of air moving in and out. Lungs are filled with millions of alveolar sacs. When laid out flat, all the alveoli together give a large sa. Bigger the sa = more area for gas exchange to occur. Lung pressures: lungs are surrounded by thin pleural membrane that folds over on itself (ceram rap):
