Receives blood from the right ventricle and sends it to the lungs.
Receives blood from the lungs; travels back to the heart.
Blood flow always starts on this side of the heart.
Receives blood from the superior and inferior vena cava.
A muscle that surrounds/separates the atriums and ventricles.
Blood is pumped through this valve when leaving the right atrium and entering the right ventricle.
Major arteries that carries blood away from the heart and to the body.
Blood is pumped through this valve when leaving the left atrium and entering the left ventricle.
Blood is pumped through this valve when leaving the heart and traveling to the lungs.
Blood that is rich in oxygen is said to be _______.
Blood that is rich in carbon dioxide is said to be _________.
This type of blood vessel carries blood TO the heart.
This type of blood vessel carries blood AWAY from the heart.
The first chamber of the heart blood enters.
The second chamber of the heart blood enters.
The third chamber of the heart blood enters after going to the lungs.
The last chamber of the heart blood enters before being pumped out to the body.
Oxygen is picked up from the ____________.
Blood is pumped through this valve when leaving the heart and preparing to go on a journey to the rest of the body.
The heart is a organ responsible for ______________ blood all throughout the body.
Blood is made up of __________ and are major carriers of nutrients.

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Crossword puzzles have been published in newspapers and other publications since 1873. They consist of a grid of squares where the player aims to write words both horizontally and vertically.

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