Oculomotor nucleus afferents from the interstitial nucleus of Cajal and the region surrounding the fasciculus retroflexus in the rabbit.
After injecting horseradish peroxidase (HRP) or Fast blue in the oculomotor nucleus of the rabbit, two groups of labelled neurons were observed among the fibres of the rostral medial longitudinal fasciculus (MLF). The first group of neurons was located in the interstitial nucleus of Cajal (INC), mainly in the contralateral side to the injected oculomotor nucleus. The second group of labelled cells was located rostrally to the INC ipsilateral to the injection in the vicinity of the fasciculus retroflexus. These neurons might be homologous to those labelled in the INC and in the rostral interstitial nucleus of the MLF in frontal-eyed mammals, and involved in the control of vertical eye movements.
Department of Morphological Sciences, Faculty of Medicine, University of Santiago de Compostela, Spain.
J L
JL
Labandeira-Garcia
M J
MJ
Guerra-Seijas
J A
JA
Labandeira-Garcia
D000344:Afferent Pathways / Q000033:anatomy & histology / Q000502:physiology; D000578:Amidines; D000818:Animals; D001692:Biological Transport; D002525:Cerebellar Cortex / Q000033:anatomy & histology / Q000502:physiology*; D004396:Coloring Agents; D004594:Electrophysiology; D005133:Eye Movements; D006735:Horseradish Peroxidase; D008297:Male; D008636:Mesencephalon / Q000033:anatomy & histology / Q000502:physiology; D009802:Oculomotor Nerve / Q000033:anatomy & histology / Q000502:physiology*; D011817:Rabbits; D013687:Telencephalon / Q000033:anatomy & histology / Q000502:physiology*
D000578:Amidines; D004396:Coloring Agents; C031455:diamidino compound 253-50; D006735:Horseradish Peroxidase