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circulation and respiration

Horizontales
This strong ligament, which is below your lungs, pushes them up and causes you to breathe
These organs purify the blood and then send urine out of your body
This is also called the windpipe
This stops the backflow of blood in veins
This is the process of breathing in oxygen and breathing out carbon dioxide
This carries blood from the body back to the lungs
This carries blood in "spurts" from your heart to your body
This organ pumps all day, every day, to keep you alive
Your heart beats about 72 times a ____
Oxygen-poor blood is this color
You feel this as a result of the beating of your heart
Verticales
The heart has this many chambers ("rooms")
This tiny vessel is about one blood cell wide
Your blood pressure is a measure of the ___ of your heartbeat
A division, or "room," in the heart
Using this can affect your blood pressure
This color blood cell fights off diseases
Blood is this color when it is rich in oxygen
This is when you breathe in
This hard bone protects the heart
This life-giving gas circulates to all parts of the body to keep you alive
These organs give oxygen to the blood before it goes out into your body
This cage protects heart and lungs
This is when you breathe out