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21 Cards in this Set
- Front
- Back
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Differentiate between systole & diastole |
Systole - Hearts contracted Diastole- heart is relaxed |
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Contrast the structure & function Arteries |
systems largest vessel; transports blood away from the heart. |
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Contrast the structure & function Arterioles |
Branch from the system's arteries; supplies blood to the body's capillaries. |
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Contrast the structure & function Blood Capillaries |
System's smallest vessels; Serves the tissues by exchanging nutrients for wastes |
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Contrast the structure & function Venules |
Removes blood from the body's capillary beds |
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Contrast the structure & function Veins |
Returns blood to the heart |
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Contrast the structure & function Anastomoses |
Provides the body with alternate circulatory routes. |
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Contrast the structure & function Lymph Capillaries |
open ended vessels, systems smallest vessel; Produces lymph by gathering interstitial fluid from the body's intercellular spaces. |
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Contrast the structure & function Lymphatics |
Systems's largest vessels; Conveys the lymph to the body's cardiovascular system, where it becomes plasma. (relies on milking valves) |
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Define Vasoconstriction |
Closing down blood vessel |
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Define Vasodilation |
Opens up blood vessel |
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Define Precapillary Sphincter |
Controls blood flow, increases body's blood pressure. |
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Define Anastmoses |
Reroutes blood |
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Define Edema |
Too much blood flow |
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Define Pulse |
Rhythmic contraction of an artery as blood rushes through it. |
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Define Hypotension |
Low blood pressure |
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Define hypertension |
high blood pressure |
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Identify the importance of pre capillary sphincters & anastomoses to the body's circulation. |
* Reroutes the blood *Increases the body's blood pressure |
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Explain how varicose veins & hemorrhoids develop. |
Poor circulation can cause varicose veins or hemorrhoids. Varicose veins - lack of movement allows blood to collect within the veins. The pressure causes the vein to rupture. Hemorrhoids - vessels surrounding the anus caused by constipation. |
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Identify the three principal factors that influence the body's blood pressure & explain their relationship to blood pressure. |
1.) Cardiac output - An increase in cardiac output causes an increase in blood pressure & vise verse. 2.) Increase of blood volume - More fluid within the same space causes an increase of pressure. 3.) A decree in the size of the cardiovascular system causes an increase in blood pressure. |
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State the average blood pressure & pulse of the body. |
120/80 - blood pressure systolic/diastolic pulse - 60- 100 beats a minute |
