precapillary sphincter

noun

: a sphincter of smooth muscle tissue located at the arterial end of a capillary and serving to control the flow of blood to the tissues

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Cite this Entry

“Precapillary sphincter.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/precapillary%20sphincter. Accessed 25 May. 2024.

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