Human anatomy, including structure and development and practical considerations . n. It api)ears in cross-section ( Fig. 97OJ as a small biconvex area,immediately dorsal to the tract of crustal hbres and lateral to the red nucleus and thesubstantia nigra. As the latter diminishes, the subthalamic nucleus expands to takeits place and, where fully represented, measures from 3-4 mm. in thickness and from10-12 mm. in its longest diameter, and extends superiorly considerably beyond thelevel of the red nucleus. Histologically the subthalamic body is distinguished by adense net-work of fine medullate
Human anatomy, including structure and development and practical considerations . n. It api)ears in cross-section ( Fig. 97OJ as a small biconvex area,immediately dorsal to the tract of crustal hbres and lateral to the red nucleus and thesubstantia nigra. As the latter diminishes, the subthalamic nucleus expands to takeits place and, where fully represented, measures from 3-4 mm. in thickness and from10-12 mm. in its longest diameter, and extends superiorly considerably beyond thelevel of the red nucleus. Histologically the subthalamic body is distinguished by adense net-work of fine medullated nerve-fibres, enclosing pigmented multipolar ner\-e-cells of medium size, and by an unusually close mesh-work of cajjillary dorsal surface of the nucleus is defined by the overlying lateral part of the field KiG. 976. Septum luciduChoroid plexus Foramen of MonroGenu of corpus callosum Rostrum ofcorpus callosum Anterior commissure Lamina cinerea Optic recess Optic commissure / \ Anterior lobe of pituitary body | Posterior lobe of pftuitarj- body Infundibulum. Body of fornixVelum interpositum coveriuvThalamus. [thalamusmesial surface Tania thalamiplenium Commissura habenulicPineal recess Pineal body Posterior commissure Quadrigeminal plate\ Sylvian aqueduct V \ Cerebral peduncle\ Middle commissureSulcus hypothalamicus\ \ \ Mammillary body\ \ Anterior pillar of fornixTuber cinereum Right lateral wall of third ventricle : velum interpositum covers superior surface of thalamus. of Forel, as the stream of fibres passing between the red nucleus and the thalamusand the internal capsule is called. Prom the ventral surface of the nucleus, fibrespierce the adjacent crusta and join the ansa lenticularis to gain, probably, the globuspallidus; other perforating fibres perhaps connect the subthalamic body withMeynerts and Guddens commissures (Obersteincr). The ventro-medial endsof the bodies of the two sides are connected by a bridge, the commissurahypothalamica, which tra
Size: 1866px × 1338px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthormc, bookcentury1900, bookdecade1910, booksubjectanatomy
