R6). Note: recent research points to a different pathway for the second afferent neuron: almost all of the fibres from each ... See pupillary fibres; retinotectal pathway; pretectum; efferent pupillary defect.. red reflex See fundus reflex.. re-fixation ... See retinotectal pathway.. cats eye reflex A whitish, bright reflection observed in the normally black pupil in several ... The first afferent neuron transmits nervous impulses from the retina to the two pretectal olivary nuclei, located on the ...

The impulse originates in a receptor at the point of stimulation, passes through an afferent neuron or neurons to a reflex ... in defibrillation or cardioversion, that follows an unwanted or potentially hazardous pathway. ... reflex arc the circuit traveled by impulses producing a reflex action: receptor organ, afferent nerve, nerve center, efferent ...