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30 Cards in this Set
- Front
- Back
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where does the hepatic vein travel to? |
the liver |
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where does the renal vein travel to? |
the kidneys |
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capillaries bed allow for what? |
diffusion and exchange |
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with the exception of capillaries the blood vessels are composed of three layers what are they? |
1. tunica intima 2. tunica media 3. tunica adventitia |
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what does perfusion mean? |
vessels constrict and relax to allow blood to reach outer appendages |
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fight or flight lead to blood vessels doing what? |
constricting |
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sphincters are also known as |
road blocks |
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what is vasoconstriction and what does it do to your blood pressure? |
the constriction of blood vessels, which increases blood pressure |
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what is vasodilation and what does it do to your blood pressure? |
the dilatation of blood vessels, which decreases blood pressure |
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what is the order blood travels through the blood vessels? |
aorta-->artery-->arterioles-->capillaries-->venules-->veins-->(vena cava, bigger veins) |
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what does a baro receptor do? |
make sure everything with your blood pressure is good, help your body react to everyday situations |
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where is a main baro receptor located? |
the aorta |
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what is blood pressure? |
the pressure exerted by blood on the walls of the blood vessels and is influenced by cardiac output, blood volume, and resistance |
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what is capillaries refill? |
pushing down on the nail bed to see if blood returns and how fast it returns to the nail bed |
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what are 3 things the blood vessels do? |
1. deliver oxygen and nutrients to cells 2. carry away waste products 3. part of maintaining blood pressure |
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arteries carry blood |
away from the heart |
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veins carry blood |
to ward the heart |
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capillaries act as |
the transfer station between the 2 |
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arterioles are |
mini arteries that branch out into the capillaires |
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venules are |
the smallest vein components that suck blood out of the capillaires |
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what are the 3 layers of tissue surrounding the open space/lumen called? |
tunic's |
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what is the first layer called? |
tunica intima |
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what are located in your tunica intima? |
connective tissue, endothelium, and internal elastic membrane |
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where is your tunica intima located? |
the inner most layer |
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what is the second layer called? |
tunica media |
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what is located in the tunica media? |
external elastic membrane |
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where is the tunica media located? |
the second layer |
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the tunica media plays a key role in blood flow and blood pressure because why? |
the smaller the diameter of the blood vessel the harder it is for blood to move through it |
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what is the third layer called? |
tunica externa |
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where in the tunica externa located? |
the outermost layer |
