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13 Cards in this Set
- Front
- Back
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Arterioles
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arteries subdivide into vessels that get smaller
control flow into capillaries |
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Capillaries
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carry blood from arterioles into venules
act as exchange vessels |
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Capillary beds
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where the exchange of nutrients and resp. gases occur between blood and tissue fluid around cells
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Tunica Externa
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outermost layer in both arteries and veins
reinforces the walls of said vessels |
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Precapillary sphincters
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smooth muscle cells that guard the entrance of capillaries and determine how much blood will flow into each capillary
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Hepatic Portal Circulation
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route of blood flow through the liver
veins from spleen stomach pancreas gallbladder and intestines send blood through liver |
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Heptic portal purpose
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liver cells remove excess glucose and store as glycogen
liver cells also detoxify various poisonous sub. that may be in blood. |
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Systemic circulation
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blood flow throughout the whole body
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Pulmonary Circulation
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blood from right side of the heart to the lungs and back
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Fetal Circulation
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the rerouting of blood flow in a pregnant woman to meet the needs of a developing fetus
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Ductus Venosus
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structure unique to fetal circulation
serves as shunt, allows most blood returning from the placenta to bypass the immature liver of the baby and empty into the inferior vena cava |
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Forman Ovale
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shunts blood from the right atrium directly into the left atrium
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Ductus arteriosus
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connects the aorta and the pulmonary artery
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