The lateral cervical nucleus in the cat. V. A quantitative evaluation on the bouton- and glia-covered surface area of different LCN-neurons.

摘要: Profiles of 14 neurons all sectioned through the nucleolar plane and 87 isolated dendritic profiles have been analyzed with respect to surface area covered by boutons astroglial processes. This analysis has revealed two different types within lateral cervical nucleus (LCN) cat. The cell also differ in other ultrastructural respects. One type, which probably consists projection neurons, is characterized a rather large size, relatively small nucleus, numerous mitochondria, well developed granular agranular endoplasmic reticulum. membrane these cells shows somatic spines perikaryon mean extent 42%. internuncial, smaller, proportionally larger few mitochondria poorly These show no perikaryal an about 10%. Also bouton populations contacting from one another. proportion internuncial LCN estimated 8%. seem preferential localization.