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Worksheet 25 Definitions

TermDefinition
diastolic volume the amount of blood in the ventricle when it is full
end systolic volume the amount of blood left in the ventricle after it contracts
contractility refers to how hard the muscle can contract when it is stretched to a certain point
hormones travel through the bloodstream to deliver their messages to many destinations in the body
adrenaline also called epinephrine, is made by the adrenal glands when you are exercising and when you are frightened; increases heart rate
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