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3
|
return blood to the heart (5)
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5
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smallest branching blood vessel forming a network (9)
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6
|
type of blood the pulmonary veins are carrying (10)
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9
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what is the name of the valve that prevent backflow of blood into the right atrium when the right ventricle contracts? (9)
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10
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the heart is located within the _________ (11)
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11
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these superior and inferior vessels enter the right atrium (5,5)
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13
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the heart is composed of this type of muscle (7)
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14
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these arteries carry deoxygenated blood to the lungs (9)
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18
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the pulmonic and aortic valves are also known as _________ valves (9)
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19
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how many chambers does the heart have? (4)
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20
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what do the ventricles do while the atria contract? (5)
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21
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region of heart where great vessels enter and leave (4)
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