In decorticate animal which reflex is lost?
Ans. is 'a' i.e., Hoping and placing reflex o First read the integrating centers of various postural reflexes.Postural reflexIntegrating centerMuscle toneSpinal cordPositive supporting reactionSpinal cordCrossed extensor reflexesSpinal cordTonic labyrinthine reflexesMedulla oblongataTonic neck reflexesMedulla oblongataRighting reflexesMidbrainLong-loop stretch reflexesCerebral cortexHopping and placing reactionsCerebral cortexo Hopping and placing reaction has its integrating center in cerebral Cortex. Therefore, it will be lost after decortication (removal of cerebral cortex)o Other three reflex have their integrating center below cerebral Cortex.
Hopping and placing reflex
Tonic neck reflex
Tonic labyrinthine reflex
Stretch reflex
Cerebellum and Brainstem