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| A system of the body composed of the cardiovascular and respiratory systems. |
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| A system of the body composed of the heart, blood, and blood vessels. |
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| A hollow muscular organ that pumps a circulation of blood through the body by means of rhythmic contraction. |
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| The space in the chest between the lungs that contains all the internal organs of the chest except the lungs. |
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| The superior chamber of the heart that receives blood from the veins and forces it into the ventricles. |
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| The inferior chamber of the heart that recieves blood from its corresponding atrium and, in turn, forces blood into the arteries. |
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| Fluid that circulates in the heart, arteries, capillaries, and veins, which carries nutrients and oxygen to all part of the body and also rids the body of waste products. |
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| Network of hollow tubes that circulates blood throughout the body. |
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| Vessels that carry blood away from the heart. |
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| Vessels that carry blood from the capillaries toward the heart. |
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| Small terminal branches of an artery, which end in capillaries. |
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| The smallest blood vessels, which connect venules with arterioles. |
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| The very small veins that connect capillaries to the larger veins. |
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| A system of organs (the lungs and respiratory passageways) that collects oxygen from the external environment and transports it to the bloodstream. |
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| The process of actively contracting inspiratory muscles to move air into the body. |
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Definition
| The process of actively or passively relaxing inspiratory muscles to move air out of the body. |
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| The biology of energy transformations and exchanges within the body, and between it and the environment. |
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Term
| Adenosine triphosphate (ATP) |
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Definition
| A cellular structure that supplies energy for many biochemical cellular processes by undergoing enzymatic hydrolysis. |
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