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Medical Term:

anatomic sphincter

 

Definition: an accumulation of circularly arranged muscle fibers or specially arranged oblique muscle fibers the function of which is to reduce or eliminate the lumen of a tube, the orifice of an organ, or the cavity of a viscus; the closing component of the pylorus.

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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