Transcript Cardiovascular System - Strathcona Christian Academy Secondary

Cardiovascular System
HCS 1080
Mr. Reed
Fall 2011
Cardiovascular System Basics
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The main components of the human cardiovascular
system are the heart and blood vessels.
Includes: the pulmonary circulation, a "loop" through the
lungs where blood is oxygenated; and the systemic
circulation, a "loop" through the rest of the body to
provide oxygenated blood.
Also, the digestive system works with the circulatory
system to provide the nutrients the system needs to
keep the heart pumping.
Pulmonary Circuit
Oxygen depleted blood is pumped away from the heart
 Returns from the lungs oxygenated.
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Systemic Circuit
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Systemic circulation is the portion of the cardiovascular
system which transports oxygenated blood away from
the heart, to the rest of the body, and returns oxygendepleted blood back to the heart.
Systemic circulation is, distance-wise, much longer than
pulmonary circulation, transporting blood to every part
of the body
The Heart
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The heart pumps oxygenated blood to the body and
deoxygenated blood to the lungs
In the human heart there is one atrium and one
ventricle for each circulation, and with both a systemic
and a pulmonary circulation there are four chambers in
total: left atrium, left ventricle, right atrium and right
ventricle
Closed System
The Cardiovascular System is closed –
meaning our blood does not enter/exit
the system.
 4.7 – 5.7 l of blood in our body.
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Cardiovascular Disease
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Cardiovascular disease is caused by disorders of the
heart and blood vessels, and includes coronary heart
disease (heart attacks), cerebrovascular disease (stroke),
raised blood pressure (hypertension), peripheral artery
disease, rheumatic heart disease, congenital heart
disease and heart failure.
The major causes of cardiovascular disease are tobacco
use, physical inactivity, and an unhealthy diet
Behavioural risks account for approximately 80% of all
cardiovascular disease
Cardiovascular Assignment
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Assignment
◦ PF 15 – You and a partner will create a poster
using Microsoft Powerpoint displaying the
negative affects smoking has on the
cardiovascular system.
 No words, simply pictures
◦ PF 25 – Individually, you will research and
present to the class a 5 minute presentation on a
cardiovascular disease of your choice
◦ PF 35 – Design and present a fitness plan to
promote a healthy heart.
 The fitness plan must be comprehensive including all
three leading causes of cd – physical inactivity, tobacco
use, and diet.