Arteries Carry bloodaway from the heart Are muscular and have a pulse Are thicker than veins or capillary http://www.doereport.com/generateexhibit.php?ID=15531&ExhibitKeywordsRaw=&TL=4294967295&A=
Veins Carry blood to the heart Have thinner walls than arteries Have valves to prevent blood from flowing backwards Must move muscles near veins to prevent clotting http://www.doereport.com/generateexhibit.php?ID=14555 http://www.nhlbi.nih.gov/health/dci/Diseases/Dvt/DVT_WhatIs.html
How Much Blood Do We have?
Parts of Blood and their Functions Red Blood Cells – contain hemoglobin which attracts and helps transport oxygen White Blood Cells – fight infection and make antibodies Platelets – stop bleeding and seal leaks Plasma – transports nutrients, wastes (including CO2 ), and hormones
Red blood Cells Red Blood Cells – contain hemoglobin which attracts and helps transport oxygen
White Blood Cells White Blood Cells – fight infection and make antibodies
Platelets Platelets – stop bleeding and seal leaks
Plasma Plasma – transports nutrients, wastes (including CO2 ), and hormones
Cardiovascular Disease What could go wrong? Blockages Leaking Muscular failure Thickening of heart Beating problems Blood disorders
Most Common Disorders Coronary Artery Disease (CAD) Atherosclerosis – narrowing of arteries Heart Attack – myocardial infarction Stroke Hypertension - high blood pressure Deep Vein Thrombosis (DVT) Angina Irregular heartbeat Leaky valves
Coronary Artery Disease When an artery or arteries is partially or fully blocked stopping blood flow to the heart or other body organ
Atherosclerosis Narrowing and loss of flexibility in an artery slowing flow of blood to an organ
Stroke Blocking of flow of blood to the brain Bleeding of a blood vessel in the brain
Hypertension High Blood pressure Can damage: Blood vessels Organs Cause plaque to become loose
Warning Signs of Heart Attack Chest discomfort. Most heart attacks involve discomfort in the center of the chest that lasts for more than a few minutes, or goes away and comes back. The discomfort can feel like uncomfortable pressure, squeezing, fullness, or pain. Discomfort in other areas of the upper body. Can include pain or discomfort in one or both arms, the back, neck, jaw, or stomach. Shortness of breath. Often comes along with chest discomfort. But it also can occur before chest discomfort. Other symptoms. May include breaking out in a cold sweat, nausea, or light-headedness.
Symptoms More Likely in Women Indigestion or gas-like pain Dizziness, nausea or vomiting Unexplained weakness, fatigue Discomfort/pain between shoulder blades Recurring chest discomfort Sense of impending doom