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What structures in capillary beds open to allow the capillaries to perfuse with blood?
precapillary sphincters
What would not result in thedilation of the feeder arterioles and opening of the precapillary sphincters in the systemic capillary beds?
a local increase in pH
What would not result in the dilation of the feeder arterioles and opening of the precapillary sphincters in systemic capillary beds?
a local increase in pH
What does a pre-capillary sphincters do?
Pre-capillary sphincters are smooth muscle fibers located at the junction of arterioles and capillaries. They regulate blood flow into capillary beds by contracting or relaxing, thereby controlling the amount of blood that enters the capillaries for nutrient and gas exchange. This mechanism helps maintain homeostasis and directs blood flow according to the metabolic needs of tissues.
What are lymphatic collecting vessels most closely associated with?
Capillary beds
What is the function of a capillarie?
Capillaries make possible the exchange of molecules between blood and interstitial fluid. Sphincters open and close to regulate the flow of blood through capillary beds.
What is the function of the capillary beds?
Exchange
What are Capillary beds fed by?
Arterioles.
How do precapillary sphincters help regulate blood pressure and body temperature?
the Precapillary Sphincters control blood pressure and body temperature by regulating the flow of blood to the capillary bed.
What is capillary washout?
Capillary washout is a stage of shock that is irreversible. When capillary washout occurs all cell functions stop and the cells die. There is large amounts of potassium acid forced in to the openings of the capillary sphincters and begin to form clots.
Are all capillary beds continuously perfused with blood?
No
What is the main component of the gill of a fish?
capillary beds
