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Which of the following is the description of precapillary sphincter quizlet?A precapillary sphincter is a cuff of smooth muscle that regulates the flow of blood into the capillaries.
What is the purpose of precapillary sphincters quizlet?-Precapillary sphincters: are rings of smooth muscle that regulate the flow of blood through capillaries; they help control the blood flow to where it is needed.
What causes precapillary sphincters to open and close?Typically acids that accumulate must be removed from tissues. So when there is a low pH a lot of acid is present and the precapillary sphincters open. If nutrients are already present in a capillary bed, precapillary sphincters will close. They open when nutrients are needed.
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Which of the following statements is not true of the precapillary sphincters
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