摘要
蒙古牛颈动脉体位于枕动脉起始处的外膜结缔组织中,呈粉红色结节状,平均大小约5.8×4.2×2.5mm,接受窦神经、喉前神经、咽神经丛的分支以及颈前神经节和迷走神经的直接分支。光镜观察,实质由许多小球组成,每一小球主要由Ⅰ型球细胞和少量Ⅱ型球细胞组成。Ⅰ型球细胞具有典型的球形核,细胞呈圆形,成簇分布。Ⅱ型球细胞数目少,位于成簇的Ⅰ型球细胞群周围,具有长椭圆形的核,细胞界线不清。在小球中央,尚有成簇的间质细胞,具有大而淡染的核,细胞界线不清。
The Mongolia ox carotid body lay medial to the upper end of the comm- on carotid artery where the occipital artery arised and was in the advent- itia of this vessel.The nerves vhich entered the carotid body arised from the sinus nerve of glossopharyngeal nerve,the cranial laryngeal nerve of vagus nerve,the pharyngeal phplexus and the cranial cervical ganglion.In- histology,the parenchymal elements was made up of many glomeruli. Each glomerulus consisted of many grouped type Ⅰ glomus cells and a few numbers of type Ⅱ glomus cells.The type Ⅰ cell was rounded with a smoo- th rounded nucleus.The type Ⅱ cell'soutline was not clear and if had an elliptical nucleius.At the centre of glomeruli,there appeared grouped interstitial cells(not Cajal's).The outlines of these cells were not clear and they had large nuclei.
关键词
颈动脉
组织学
牛
carotied body
gross anatomy
histology
ox
