Health notes week 2
Health notes week 2 1823-006
Popular in scientific principal of Health and disease
English 491-01 (3674)
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This 2 page Class Notes was uploaded by Victoria King on Monday February 29, 2016. The Class Notes belongs to 1823-006 at University of Oklahoma taught by John Farrel in Winter 2016. Since its upload, it has received 31 views. For similar materials see scientific principal of Health and disease in Health Sciences at University of Oklahoma.
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Date Created: 02/29/16
heart blood flow—> right atrium,contracts, opens tricuspid flap, right ventricle, closes lunar valve flap, lungs, pulmonary vein, left atrium, contracts, opens bicuspid flap, left ventricle, closes the aortic semilunar valve flap, contracts and goes through aorta to the body. (Check phone for picture) cardio vascular system- heart- blood distributer. weighs less than .5 kilograms. heart beats 40 million times in one yea. at rest, pumps 1400 per day. muscles are striated and the ventricles contract together while the atriums contract togethers. Right side is deoxygenated while the left is oxygenated. anatomy of heart- inter ventricular septum: muscular wall separates the right and left side atrio-ventricle valve- separates the atrium from ventricle. helps with separation of pressure. pulmonary and aortic valves- semilunar that separate the right and left ventricles artery- carries deoxygenated away from heart (pulmonary-bottom of right ventricle, aortic- left ventricle) vein- oxygenated blood to the heart Aorta- blood leaves left ventricle and goes to the rest of the body diffusion- high pressure to low pressure electrical shock- SA node, pauses for .0005 seconds, to the AV node to the perkenji fibers blood vessels- arteries, arterioles, veins, etc. blood- carries nutrients, ions, wastes and gases electrocardiogram- ECG or EKG is a primary tool to look at the electrical events within the heart P wave(atrial Depolarization)-QRS complex- T wave(ventricle Depolarization or rest or relaxation) left ventricle is larger than right atrium relaxes during the QRS, but the signal gets lost Vascular system: 1.arteries: blood away from heart, oxygenated and bigger tunica media 2. capilaries, red turns into blue gas exchange 3. veins: deoxygenated and valves. muscle pumps. why you should never lock your knees blood pressure- determined by volume and compliance. v- how much blood c- how easily can they stretch/ how much pressure cardiac output- stroke volume * the heart rate heart rate- beats per minute stroke volume- blood pumped out systolic- left ventricle is contracted diastolic- when the heart is relaxed 80-120 mean material pressure- average pressure during a cardic cycle MAP= 2/3 DBP + 1/3 SBP
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