Human Circulatory System

HUMAN CIRCULATORY SYSTEMBlood and Guts

ByDr. Malazzo

TRANSPORT

Move materials to and from cells

Heart Attack

http://www.empowher.com/media/video/video-dr-goldberg-women-and-heart-attacks-what-have-doctors-learned

http://www.lifebeatonline.com/winter2006/recovery.shtml

Heart attack in men

Functions of the Circulatory System

Deliver Oxygen Nutrients Hormones

Pick-Up Carbon dioxide Wastes

Parts of the Circulatory System

Heart Blood Vessels Blood

The Heart

1. Aorta2. Superior vena cava3. Pulmonary artery4. Pulmonary vein5. Right atrium6. Tricuspid valve7. Right ventricle8. Inferior vena cava9. Pulmonary artery10. Pulmonary vein11. Left atrium12. Mitral valve 13. Aortic valve14. Left ventricle

http://www.pbs.org/wnet/redgold/journey/circulation.swf

Circulation animationhttp://www.wisc-online.com/objects/index_tj.asp?objID=AP12704

Blood Vessels

Arteries

Carry blood away from the heart

Are muscular and have a pulse

Are thicker than veins or capillary http://www.doereport.com/generateexhibi

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Artery

Vein

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/generateexhibi

t.php?ID=14555

http://www.nhlbi.nih.gov/health/dci/Diseases/Dvt/DVT_WhatIs.html

Spider Veins

Capillary

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

Artery Blockage

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

Coronary Thrombosis

Atherosclerosis

Narrowing and loss of flexibility in an artery slowing flow of blood to an organ

Artherosclerosis

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

Blood Disoders

Anemia Hemophilia Leukemia Sickle cell anemia Sticky Blood Blood Poisoning AIDS

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

Angiogram

http://www.surgeryinfo.org/sitebuildercontent/sitebuilderfiles/Angiogram.swf

Angioplasty

http://www.healthscout.com/animation/1/38/main.html