Download The Human Heart

The Human Heart
Diagram of the Heart
Chambers of the heart
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The heart has four chambers or parts.
These are called:
Blood Vessels
Veins are tubes which bring blood without
oxygen into the heart.
 Arteries are tubes which take blood with
oxygen away from the heart and bring it all
around the body.
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Together they are called blood vessels.
How the Heart Works
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Blood without oxygen comes into the
heart through a vein.
It goes into the first chamber called the
right atrium.
It then goes through an opening called a
valve into the right ventricle.
From there it is pumped to the lungs to
collect some oxygen.
Going into the Heart
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2
How the Heart Works
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Blood with oxygen comes back to the
heart from the lungs.
It goes into the left atrium.
It then goes through an opening called a
valve into the left ventricle.
From there it is pumped away from the
heart and all around the body through a
very special artery called the aorta.
Coming out of the Heart
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2
Back from the lungs
A Video on the Heart
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http://www.heartlibrary.com/heart-libraryheart-anatomy.aspx
Experiment Time!
Finding our Pulse!
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Put your left hand out.
Put out your middle and pointing finger on the
right hand.
Place them on your left wrist below your thumb
and search for a beat. This is your pulse.
The pulse tells us how quickly the heart is
pumping blood around the body.
It should beat about 70 times every minute.
Finding our Pulse!
COUNT HOW MANY TIMES YOU FEEL
YOUR PULSE BEAT IN ONE MINUTE.
 Record your answer.
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My pulse is _____ per minute.
Finding our Pulse!
Jog on the spot for one minute.
Now count how many times you feel your pulse
beat in one minute.
 Record your answer.
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When I ran for 1 minute my pulse was _____ per
minute.
What happened to your pulse
when you ran for one minute?
Why do you think this
happened?
Finding our Pulse!
Do jumping jacks for one minute.
Now count how many times you feel your
pulse beat in one minute.
 Record your answer.
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When I did jumping jacks for 1 minute my
pulse was_______________ per minute.
What happened to your pulse
when you did jumping jacks for
one minute?
Why do you think this
happened?