quadripedal extensor reflex

[kwŏd′rə-pĕdl, -pēdl]
n.
  1. Extension of the arm on the affected side in hemiplegia when the patient is positioned to be on all fours.Brain's reflex
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.