Kin 199 Notes for 2/2
Kin 199 Notes for 2/2 KIN199
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This 2 page Class Notes was uploaded by Rani Vance on Monday February 8, 2016. The Class Notes belongs to KIN199 at University of Alabama - Tuscaloosa taught by Brett Nickerson in Winter 2016. Since its upload, it has received 22 views. For similar materials see Ecological Approach to Health & Fitness in Kinesiology at University of Alabama - Tuscaloosa.
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Date Created: 02/08/16
Kin 199 Notes for 2/2 Cardiovascular System Consists of: -heart -blood vessel -respiratory system -transports O2, nutrients tissues -picks out CO2 from inside muscles, lactic acid (can’t let too much of this build up, can lead to fatigue) -blood flow vital organs/ muscles and to skin to help release heat during exercise Stroke volume= volume per beat The Heart -size of a fist -L/R atrium and ventricle -veins carry deoxygenated blood (blood not completely without oxygen, just very low levels) -pulmonary circulation: right side of the heart pumps bloods to the lungs -systemic circulation: left side pumps blood to the rest of the body Systolic (systole): heart’s contraction 120mm Hg Diastolic (diastole): heart’s relaxation 80mm Hg Sinoatrial Node: bundle of cells in the right atrium and initiates the heart beat Respiratory System: -alveloli: air sacks located in the bronchi, gas exchange occurs at the alveoli & allows O2 to return to the heart and systemic system while removing CO2 Metabolism Sum of all chemical processes necessary to maintain the body Metabolic: the efficiency at which your body uses energy -body uses carbs, glucose, glycogen Types: 1. Immediate: 10 secs<, ATP & creatine phosphate 2. Nonoxidative (anerobic) 10-120 secs, creates ATP by breaking down glucose & glycogen develop lactic acid 3. Oxidative (aerobic) Any activity >120 secs, O2 needed for ATP
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