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The Circulatory System

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Samuel Sorenson

on 15 April 2013

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Transcript of The Circulatory System

THE CIRCULATORY SYSTEM HEART BLOOD PRESSURE 120 / 80 systolic pressure diastolic pressure MAXIMUM rate of blood pressure MINIMUM rate of blood pressure WHAT THE NUMBERS MEAN Force of blood circulating in arteries' walls BLOOD VESSELS ARTERIES VEINS CAPILLARIES VENA CAVA AORTA Allow blood to flow in and out of the heart ATRIA VENTRICLE Left = oxygen-rich Right = oxygen poor Receives blood from veins Pumps blood from heart to the body Left = oxygen-rich Right = oxygen-poor Endothelium Smooth muscle Connective tissue Arteriole Venule Endothelium Valve Smooth muscle Connective tissue Endothelium Capillary Artery Vein Smallest blood vessel (One cell thick) Connects arteries to veins Carry blood from the heart to body tissues Carry oxygen-rich blood Return blood to heart Carry oxygen-poor blood VALVES "Gateways" between the heart's chambers "scooby doo/systolic diastolic" Artery that brings oxygen-rich blood from left ventricle to the body Vein that carries deoxygenated blood from body to heart Inferior = lower body Superior = upper body Essential for blood flow DISEASES ATHEROSCLEROSIS HYPERTENSION HEART ATTACK BLOOD CLOTTING LYMPHATIC SYSTEM BLOOD CELLS Red blood cells White blood cells Platelets Break in capillary wall Clumping of platelets Clot forms Thickening of vessel walls PLASMA "Liquid" part of blood 55% of blood content Contains plasma proteins Help form blood clots
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