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THE ANATOMY OF THE HEART
Kelsey Leck
10th Grade Biology
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Click on a part of the heart
To learn more about it!
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LEFT VENTRICLE
A chamber of the heart, on the bottom left side of the heart.
The left ventricle receives blood
from the left atrium and pumps it into the aorta.
The left ventricle is thick-walled and must be able
to contract and relax rapidly.
Blood going into the aorta from the left ventricle is oxygenated.
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RIGHT VENTRICLE
A chamber of the heart, on the bottom right side of the heart.
It receives blood from the right atrium and
pumps it into the pulmonary artery.
Has a thinner wall than the left ventricle.
Blood going into the pulmonary artery from the
right ventricle is deoxygenated.
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LEFT ATRIUM
A chamber of the heart, on the upper left side of the heart.
It receives blood from the pulmonary,
and pumps it into the left ventricle.
Has an oblique vein, derives from the embryonic
left superior vena cava.
Blood going into the left ventricle from
the left atrium is oxygenated.
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RIGHT ATRIUM
A chamber of the heart, on the upper right side of the heart.
It receives blood from the vena cava and
pumps it into the right ventricle.
The opening on the right atrium is called the coronary sinus.
It drains the myocardium (muscular tissue of the heart).
Blood going into the right ventricle from
the right atrium is deoxygenated.
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AORTA
The largest artery in the body.
Originates from the left ventricle
and extends down to the abdomen.
The aorta distributes oxygenated blood to all parts of the body.
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VENA CAVAE
An artery comprised of the superior and inferior vena cava.
They return blood from the body back into the heart,
And empty the blood into the right atrium.
The blood that enters the heart through
The vena cavae is deoxygenated.
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PULMONARY ARTERY
The pulmonary artery begins at the base of the right ventricle,
and carries blood from the heart to the lungs.
Can be the consequence of heart disease, as well as a
number of lung diseases.
The blood carried from the heart is deoxygenated.
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Now that you know
the basic components of the heart,
let's test your knowledge!
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QUESTION 1
Where does the left ventricle get its blood from?
A. Left Atrium
B. Aorta
C. Right Atrium
WHOOPS!
I’m sorry, that’s not correct!
The left ventricle is not directly connected to the right atrium.
Please try again! :)
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WHOOPS!
I’m sorry, that’s not correct!
The aorta does not specifically give blood to the left ventricle.
Please try again! :)
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CONGRATULATIONS!
That is the correct answer!
The answer is indeed the left atrium!
Click on the button to continue to the next question!
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QUESTION 2
When blood enters the Aorta,
is it oxygenated or deoxygenated?
A. Oxygenated
B. Deoxygenated
WHOOPS!
I’m sorry, that’s not correct!
The blood is not deoxygenated. Think of where the blood is coming from.
Please try again! :)
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CONGRATULATIONS!
That is the correct answer!
The answer is indeed oxygenated!
Click the button to continue to the last question!
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QUESTION 3
Which chamber of the heart has a coronary sinus?
A. Left Atrium
B. Right Atrium
C. Right Ventricle
WHOOPS!
I’m sorry, that’s not correct!
The coronary sinus is on a right chamber, but not a ventricle.
Please try again! :)
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WHOOPS!
I’m sorry, that’s not correct!
The coronary sinus is not on the atrium, but it is still on AN atrium.
Please try again! :)
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CONGRATULATIONS!
That is correct!
The answer is the right atrium!
Click next to continue.
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VIDEO
Real life footage of a heart pumping blood in a guy’s
open chest. Pretty cool.
http://www.youtube.com/watch?v=Gnv54V8Jj1U
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THE END
That’s all folks!
Any questions?
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