anal wink(redirected from Anal contraction)
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
Contraction of the anal sphincter in response to pinprick stimulus of the perineum. This reflex is evidence of normal motor function at S4–S5. It is also known as the anal or anocutaneous reflex.
Medical Dictionary, © 2009 Farlex and Partners