Term
| What is the difference between an artery and a vein? |
|
Definition
Artery-away from heart
Vein-towards heart |
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Term
| Name the largest artery in your body? |
|
Definition
aorta
(coming out of left ventricle) |
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Term
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Definition
| the smallest type of blood vessel, where gases are exchanged between blood & tissues |
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Term
| Most arteries carry what kind of blood? |
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Definition
|
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Term
| Most veins carry what kind of blood? |
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Definition
|
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Term
| Blood leaving the right side of the heart is headed where? |
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Definition
|
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Term
| What gas exchange takes place in the lungs |
|
Definition
O2 into bloodstream
CO2 into lungs (alveoli) |
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Term
| If blood is traveling through the aorta, where is it going? |
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Definition
|
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Term
| Is blood traveling in the aorta deoxygenated or oxygenated? |
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Definition
|
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Term
| What gas exchange takes place in the capillaries throughout the body? |
|
Definition
O2 into cells
CO2 into bloodstream |
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Term
| What separates the atria from the ventricles? |
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Definition
| valves that open & close every time that the heart beats |
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Term
| What causes the lub-hub sound of your heart? |
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Definition
| the valves opening & closing |
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Term
| Which chamber of the heart is the strongest & most muscular? Why? |
|
Definition
| the left ventricle-because it has to pump blood out to the entire body |
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Term
| Trace the path of air flow into your body, starting with mouth/nose & ending at the alveoli. |
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Definition
| mouth/nose-pharynx-trachea-bronchi-bronchioles-alveoli |
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Term
|
Definition
| the physical process of inhaling/exhaling |
|
|
Term
|
Definition
in cells: chemical reaction to release energy from food
in organisms: gas exchange between organism and its environment |
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Term
| Why is the heart so important to survival? |
|
Definition
| it pumps the oxygenated bold to our body cells |
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Term
| What muscles controls the breathing process? |
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Definition
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Term
| What happens in the alveoli? |
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Definition
| gas exchange-O2 in alveoli diffuses into bloodstream while CO2 in bloodstream diffuses into alveoli to be exhaled |
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Term
| What is the purpose of the epiglottis? |
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Definition
| to prevent food/liquid from going into trachea |
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