Centrifugal fibers to the rat retina from the medial pretectal area and the periaqueductal grey matter.
Intraocular injections of several different retrograde tracers were made in albino rats. Retrogradely filled neurons were observed in two locations: the medial pretectal area and the contralateral periaqueductal grey matter, indicating that the pretectum and the mesencephalon are sources of centrifugal innervation to the rat retina.
D000818:Animals; D004525:Efferent Pathways / Q000033:anatomy & histology; D008297:Male; D008636:Mesencephalon / Q000033:anatomy & histology*; D010487:Periaqueductal Gray / Q000033:anatomy & histology*; D051381:Rats; D011919:Rats, Inbred Strains; D012160:Retina / Q000033:anatomy & histology*