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Titolo:
TRANSNEURONAL RETINAL INPUT TO THE PRIMATE EDINGER-WESTPHAL NUCLEUS
Autore:
KOUROUYAN HD; HORTON JC;
Indirizzi:
UNIV CALIF SAN FRANCISCO,BECKMAN VIS CTR,DEPT OPHTHALMOL,10 KIRKHAM ST SAN FRANCISCO CA 94143 UNIV CALIF SAN FRANCISCO,BECKMAN VIS CTR,DEPT OPHTHALMOL SAN FRANCISCO CA 94143
Titolo Testata:
Journal of comparative neurology
fascicolo: 1, volume: 381, anno: 1997,
pagine: 68 - 80
SICI:
0021-9967(1997)381:1<68:TRITTP>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
PUPILLARY LIGHT REFLEX; PRETECTAL OLIVARY NUCLEUS; ACCESSORY OPTIC-SYSTEM; RHESUS-MONKEY; HORSERADISH-PEROXIDASE; SUPERIOR COLLICULUS; ANATOMICAL ANALYSIS; SQUIRREL-MONKEY; MACACA-MULATTA; PROJECTIONS;
Keywords:
PUPIL REFLEX; OCULOMOTOR NUCLEUS; PRETECTUM; OLIVARY NUCLEUS; CILIARY GANGLION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
50
Recensione:
Indirizzi per estratti:
Citazione:
H.D. Kourouyan e J.C. Horton, "TRANSNEURONAL RETINAL INPUT TO THE PRIMATE EDINGER-WESTPHAL NUCLEUS", Journal of comparative neurology, 381(1), 1997, pp. 68-80

Abstract

The Edinger-Westphal nucleus of the oculomotor nuclear complex provides preganglionic parasympathetic innervation to the pupil. We labelledits retinal input by transneuronal autoradiography after an eye injection of [H-3]proline in the macaque monkey. The primary retinal projection to the pretectum terminated in the ipsilateral and contralateral olivary nuclei. These nuclei were intensely labelled and sharply delimited, with a mean diameter of 590 mu m and a rostrocaudal length of 2.52 mm. The caudal half of the olivary nucleus on each side broke into multiple clumps of label. Fragments of label also surrounded each olivary nucleus. The exact pattern of pretectal labelling varied considerably among animals and even from side to side in the same animal. In 5 of 6 monkeys, label from the olivary nucleus reached the Edinger-Westphal nucleus transneuronally. In transverse sections, the Edinger-Westphal label appeared as a circular patch located on either side of the midbrain ventral to the cerebral aqueduct in the central gray matter. It averaged 230 mu m in diameter and 610 mu m in length. In Nissl-stained sections, the autoradiographic label corresponded to a distinct nucleus comprised of neurons that were smaller than neurons in nearby somatic subdivisions of the oculomotor complex. The mean area of Edinger-Westphal neurons was 295 mu m(2). Transneuronal retinal input to the Edinger-Westphal nucleus mediating pupillary constriction terminates ina single, well-defined cell group in the midbrain. (C) 1997 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 13:28:02