Deletion of pioneer axons which create the scaffold have an effect on the growth cones of the neurons of the nucleus of the posterior commissure, in that they cannot follow the normal path of extending ventrally, then posteriorly.
12.
In the Eutherian brain the nerve fibre tracts across the medial longitudinal fissure, that form commissures between the two cerebral hemispheres, are the anterior commissure, posterior commissure, corpus callosum, hippocampal commissure ( commissure of fornix ), and habenular commissure.
13.
For the purposes of tumour staging, the larynx is divided into three anatomical regions : the glottis ( true vocal cords, anterior and posterior commissures ); the supraglottis ( epiglottis, arytenoids and aryepiglottic folds, and false cords ); and the subglottis.
14.
Most of them have their origin in a nucleus, the " nucleus of the posterior commissure " ( nucleus of Darkschewitsch ), which lies in the central gray substance of the upper end of the cerebral aqueduct, in front of the oculomotor nucleus.
15.
He is remembered for his description of the nucleus of the posterior commissure, also known as the " nucleus of Darkshevich ", defined as a cell group located in the central gray substance of the upper end of the cerebral aqueduct, in front of the oculomotor nucleus.
16.
By defining standard anatomical landmarks that could be identified on different subjects ( the anterior and posterior commissures ), it became easier to spatially warp an individual brain image obtained through Magnetic Resonance Imaging ( MRI ), positron emission tomography ( PET ) and other imaging methods to this standard Talairach space.
