Blood Pressure Blood Volume
by
Tehescmarts
Last updated 1 year ago
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Exercise
-- Force on vessel walls. due to ventricle contraction and elasticity of vessels-- Written as a fraction of systole (ventricle squeeze) over diastole (ventricle fill).-- Increased by emotional state and exercise.-- Hearts which are more fit have lower pressure-- 120/80 male or 110/70 female are normal-- Regulated by cardiovascular center in medulla as part of the autonomic system.
-- A friction force that slows down blood flow.-- The walls of the blood vessel create friction-- Skinnier vessels touch more of the blood in them-- Longer vessels touch more of the blood in them-- Blood with less fluid has more resistance-compare toothpaste to water
Resistance
-- Stroke volume is amount of blood leaving heart every beat-- SV is affected by amount of blood in ventricle, force of contraction, and resistance in vessels-- Cardiac Output is how much blood leaves heart in one minute.-- Resting male average is 5.25L/min-- 5.25L is average amount of blood in a person-- Regulated by cardiovascular center in medulla as part of the autonomic system.
--Hypertension-higher than normal blood pressure--Hypertension causes atherosclerotic vascular disease (plaque buildup), heart failure, kidney disease, and stroke--Arteriosclerosis-stiff walls--Bad for health: smoking, saturated fat, lack of exercise, stress--Good for health: Not overweight, no smoking, exercise, fruits, and vegetables--Treatment: angioplasty, artery replacement
Disease
-- Increase in exercise may increase cardiac output by 6 times to 30L/min!--Higher activity, higher blood flow
Blood Pressure
Book
Viscosity
Heart and Vessels
-- Right side of heart pumps deoxygenated blood to lungs-Pulmonary circuit--Left side of heart pumps oxygenated blood to body-Systemic circuit--Arteries leave heart so have to be stronger, thicker--Smaller arteries--arterioles --Veins go to heart, low pressure so need valves--Smaller veins--venules--Capillaries to every cell in body--1 cell thick
Blood Volume
Medline
Calculator
Diameter
Sickle Cell
--how thick and slow
Benefits
3 Min
Comparison
Aging
Surgery
Worksheets Quizzes
Concepts
Worksheets
Viscosity
15 Minutes
8 Minutes
Lesson plan, slides,worksheets:Paperclip at bottom of page.
2 Systems
Song
Circulation
Bill Nye
Vessel Size
11 Min
High BP
16 Q
Label
Pulse
Blood Pressure, Blood Volume, Resistance, Disease, and Exercise
Blood Pressure, Blood Volume, Resistance, Disease, and Exercise
MadameLe 8 years ago
Take a look at what your kids could be doing!
Doni123 8 years ago
Wow.... blood pressure. Never know! :) When i grow up, i am not gonna be angry to boost up my blood pressure! LOL
cathylawa 8 years ago
Nice
Tehescmarts 8 years ago
Thank you. Have you made a glog on Blood Flow? Put your link to your glog in comments. Or put your ideas or web site suggestions here.