Piffer C R, Zorzetto N L
Anat Anz. 1982;151(4):367-73.
Mesoscopic observations on the hypoglossal nerve at the level of the superior portion of the hýpoglossal canal, show that this nerve is separated by bundles, which are attached to the wall of the venous plexus of the hypoglossal canal by means of numerous fibrous septum disposed transversally to the lumen of the canal. The union of the bundles constituting the trunk of the hypoglossal nerve only occurs near this emergency of the base skull through of the hypoglossal canal. One of this nervous bundles described stretch adhesive to the wall of the venous plexus of the hypoglossal canal, while the others are disposed centrally to the lumen of the canal. The central bundle and the fibrous septum delimit tha vascular compartments of the venous plexus of the hypoglossal canal. Microscopically, connective sheaths around the nervous bundles composed of fascicles of circular, oblique, longitudinal collagenic fibers were observed.
在舌下神经管上部水平对舌下神经进行的微观观察表明，该神经由束状结构分隔，这些束状结构通过大量横向于神经管腔排列的纤维间隔附着于舌下神经管静脉丛壁。构成舌下神经干的束状结构仅在舌下神经管穿出颅底处附近才会合并。所描述的这些神经束之一伸展并附着于舌下神经管静脉丛壁，而其他神经束则位于神经管腔的中央。中央束和纤维间隔界定了舌下神经管静脉丛的血管腔隙。在显微镜下，观察到神经束周围的结缔组织鞘由圆形、斜向、纵向胶原纤维束组成。
