pyloric sphincter

noun

Medical Definition of pyloric sphincter

: the circular fold of mucous membrane containing a ring of circularly disposed muscle fibers that closes the vertebrate pylorus

called also pyloric valve

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Cite this Entry

“Pyloric sphincter.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/pyloric%20sphincter. Accessed 13 Aug. 2020.

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