Term
| What organ systems are directly involved in the exchange between the blood compartment and the outside environment? |
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Definition
| Lungs, GI Tract, Kidneys, and Skin |
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Term
| Pulmonary Circulation definition |
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Definition
| The passage of blood from the right ventricle through the pulmonary artery to the lungs and back through the pulmonary veins to the left atrium. |
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Term
| Systemic Circulation definition |
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Definition
| The circulation of blood through the arteries, capillaries, and veins of the general system, from the left ventricle to the right atrium. |
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Term
| Within organs, where is the primary site of exchange? |
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Definition
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Term
| Where is the primary site of exchange in organs? |
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Definition
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Term
The right and left sides of the heart a.) Are in parallel or series? b.) Why is this important? |
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Definition
a.) series b.) There are two main reasons. First, the output of each side of the heart closely matches the output of the other side. Second, this causes the circulation of most major organ systems to be in parallel (the liver, which for the most part is in series, is the exception). This parallel circuit stops changes in blood flow to one organ from significantly affecting the flow to other organs. |
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Term
| Organ blood flow is not driven by the output of the heart per se, but rather ________. |
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Definition
| The pressure generated within the arterial system as the heart pumps blood into the vasculature, which serves as a resistance network. |
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Term
| What is the maximal systolic pressure in the pulmonary artry? |
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Definition
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Term
| What is the maximal systolic pressure in the aorta? |
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Definition
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Term
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Definition
The amount of blood ejected by the heart in a unit of time (i.e., the minute volume), usually expressed in liters per minute CO = SV x HR |
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Term
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Definition
| The volume pumped out of one ventricle of the heart in a single beat |
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Term
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Definition
| Rate of the heart's beat (beats per minute) |
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Term
| What is vascular resistance? |
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Definition
| The resistance to flow that must be overcome to push blood through the circulatory system. |
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Term
| Why is vascular resistance important? |
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Definition
| If all of the microvessels in the systemic microcirculation were open at once, not enough blood volume would be available to the cardiovascular system to generate the pressure required to sustain blood flow. |
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Term
| What is the medical definition of the cardiovascular system? |
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Definition
| The heart and blood vessels considered as a single, functional unit |
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Term
| Failure of the cardiovascular system rapidly jeopardizes the homeostasis of body organs because of ___________ and __________. |
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Definition
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