The fine structure of the nucleus of the hypoglossal nerve of sheep and goats

In the small domesticated ruminants the nucleus of the hypoglossal nerve is situated in close relationship to the median line in the middle of the elongated medulla. The nucleus is divided by the obex into a rostral and a caudal portion. In the sheep, four distinct subnuclei can be recognized, where...

Full description

Saved in:

Bibliographic Details
Published in:	Anatomia, histologia, embryologia Vol. 20; no. 4; p. 334
Main Authors:	Störmer, R, Goller, H, Schubert, S
Format:	Journal Article
Language:	German
Published:	Germany 01-12-1991
Subjects:	Animals Goats - anatomy & histology Hypoglossal Nerve - ultrastructure Microscopy, Electron Neurons - ultrastructure Sheep - anatomy & histology
Online Access:	Get more information
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	In the small domesticated ruminants the nucleus of the hypoglossal nerve is situated in close relationship to the median line in the middle of the elongated medulla. The nucleus is divided by the obex into a rostral and a caudal portion. In the sheep, four distinct subnuclei can be recognized, whereas in the dwarf goat great variations in the arrangement of cell groups exists. In both animals large and medium sized neurons are observed. The large neurons are characterized by densely packed small organelles. The medium sized neurons vary between a pale and an electron dense type. According to the size and morphology of the vesicles three types of synaptic contacts can be differentiated. Synapses of type 2 contain clear round and flattened vesicles and are partially accompanied by subsurface cisterns.
ISSN:	0340-2096