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Cardiovascular System

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by

John Lui

on 22 May 2015

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Transcript of Cardiovascular System

Cardiovascular System
Heart
Pumps the blood

Facts:
Consists of cardiac muscle tissue
Has 4 chambers
Beats up to 100,000 per day
Pumps over 2,000 gal. of blood per day
Blood Flow
1. enters right antrium
2. goes to right ventricle
3. goes to lungs
4. enters left antrium
5. goes to left ventricle
6. enters aorta
Blood Vessels
Transports blood
Over 60,000 miles

There are 3 types of blood vessels
Arteries
: Carry oxygen rich blood away from the heart
Capillaries
: thin vessels that exchange oxygen and CO2
Veins
: carry blood back toward the heart.
Blood
Carries nutrients and
oxygen to cells, also
removes waste

Red blood cells contain hemoglobin that carry oxygen
White blood cells fight off infections
Platelets stop bleeding
Plasma is mostly water and makes up 7% of your weight
Cardiovascular Diseases
Leading cause of death
Heart attack: blood vessels in the heart are blocked
Stroke: blood vessels are blocked
Aneurysm: blood vessel breaks open
Trans fat are bad for you HDL is good cholesterol LDL is bad
Stay away from partial hydrogenated oil
Full transcript