Clarke R J, Aléssio M L, Pessoa V F
Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Cidade Universitária, Recife, Brazil.
Acta Anat (Basel). 1987;130(2):191-6. doi: 10.1159/000146444.
Extraocular muscle motoneurones were localised in the oculomotor nucleus (ON), trochlear nucleus (TN) and abducens nucleus (AN) in the marmoset brain using the horseradish peroxidase (HRP) retrograde labelling technique. HRP pellets injected into individual extraocular muscles revealed one or more groups of labelled neurones occupying discrete loci within these nuclei. Relatively little overlap of motoneurone pools was observed, except in the case of the inferior oblique and superior rectus muscles. Injections of HRP into the medial rectus muscle revealed three separate populations of labelled cells in the ipsilateral ON. Motoneurones innervating the inferior rectus muscle were mainly localised in the lateral somatic cell column of the ipsilateral ON. A second smaller grouping was observed in the medial longitudinal fasciculus. The inferior oblique muscle motoneurones were localised in the ipsilateral medial somatic cell column intermingled with motoneurones supplying the superior rectus muscle of the opposite eye. The superior oblique muscle motoneurones occupied the entire TN and the lateral rectus muscle motoneurones the AN. It was concluded that the organisation of nuclei and subnuclei responsible for controlling the extraocular muscles in the marmoset is broadly similar to that of other primates.
利用辣根过氧化物酶（HRP）逆行标记技术，在狨猴脑中定位眼外肌运动神经元于动眼神经核（ON）、滑车神经核（TN）和展神经核（AN）。将HRP微丸注入单个眼外肌后，可发现这些核内有一组或多组标记神经元占据离散的位点。除下斜肌和上直肌外，运动神经元池的重叠相对较少。将HRP注入内直肌后，在同侧动眼神经核中发现了三个独立的标记细胞群。支配下直肌的运动神经元主要位于同侧动眼神经核的外侧体细胞柱。在内侧纵束中观察到第二个较小的细胞群。下斜肌运动神经元位于同侧内侧体细胞柱，与支配对侧眼上直肌的运动神经元混合在一起。上斜肌运动神经元占据整个滑车神经核，外直肌运动神经元占据展神经核。得出的结论是，狨猴中负责控制眼外肌的核和亚核的组织与其他灵长类动物大致相似。
