摘要
本文采用5例人脑标本,动脉灌注墨汁明胶液,做300μm 和150μm 连续水平切片,观测延髓20个神经核团和纤维束的毛细血管密度。结果表明,核团的毛细血管明显比纤维束的丰富。根据毛细血管密度可将核团分为高、中、低3类。高密度的核团包括楔束副核、背侧副橄榄核、下橄榄核、前庭神经内侧核和楔束核;除楔束核外,均与小脑有纤维联系。中等密度的核团有网状外侧核、脊髓上核、舌下神经核和薄束核。低密度的核团有三叉神经脊束核、迷走神经背核和孤束核。在纤维束中,锥体束的毛细血管密度最低。
The arteries of 5 human brainstems were injected by using a mixture of prepared
chinese ink and gelatin.The capillary densities of 20 various nuclei and tracts in
the medulla oblongata were observed and measured in 300μm and 150μm serial trans-
verse sections.
The tracts are less vascularized than nuclei.The nuclei have been divided into
high,medium and low three groups according to their capillary densities.The high
density nuclei consist of accessory cuneate nucleus,inferior olivary nuclear complex,
medial vestibular nucleus,nucleus cuneatus.The medium density nuclei are lateral
reticular nucleus,nucleus supraspinalis,hypoglossal nucleus and nucleus gracilis.The
low density nuclei are dorsal vagal nucleus,spinal trigeminal nucleus,nucleus of
solitary tract.The pyramidal tract has the lowest density among the tracts observed.
出处
《解剖学报》
CAS
CSCD
北大核心
1989年第2期117-120,共4页
Acta Anatomica Sinica
关键词
延髓
毛细血管网
核团
纤维束
人
Medulla oblongata
Capillary network
Nucleus
Tract
