Capillary bed

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8 Terms

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Arteriole
Delivers oxygenated blood and regulates flow via smooth muscle.
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Precapillary sphincters
Control entry of blood into capillaries; regulate capillary flow.
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Capillary bed
Site of exchange of gases, nutrients, wastes, and hormones.
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Venule
Drains deoxygenated blood and returns it to veins.
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Plasma
Liquid portion of blood; carries water, electrolytes, nutrients, hormones, wastes.
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Cells (in interstitial fluid)
Dissolved substances that move between blood and tissues.
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Tissue cells
Take up oxygen and nutrients; release CO₂ and wastes; regulate local blood flow.
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Lymphatic capillary
Collects excess interstitial fluid, proteins, and immune cells; returns it to lymphatic system.