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Human anatomy, including structure and development and practical considerations . ridi^e and the divernini>; mesial border of the upper surface of the thalamus, isincluded a narrow depressed trianirular area, known as the trigonum habenulae.It lies on a distinctly lower level than the adjoining conex upjjer surface of thethalamus. Since it contains a special nucleus and belongs to the eiMthalamus, itsdescription will be deferred until that region is considered (yd^(j: 1123). The upijersurface is not quite even, but subdixided by a shallow oblique furrow, which runsfrom before backward and

Human anatomy, including structure and development and practical considerations . ridi^e and the divernini>; mesial border of the upper surface of the thalamus, isincluded a narrow depressed trianirular area, known as the trigonum habenulae.It lies on a distinctly lower level than the adjoining conex upjjer surface of thethalamus. Since it contains a special nucleus and belongs to the eiMthalamus, itsdescription will be deferred until that region is considered (yd^(j: 1123). The upijersurface is not quite even, but subdixided by a shallow oblique furrow, which runsfrom before backward and Stock Photo
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Contributor:

The Reading Room / Alamy Stock Photo

Image ID:

2AWEGGJ

File size:

7.2 MB (197.5 KB Compressed download)

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Dimensions:

1382 x 1809 px | 23.4 x 30.6 cm | 9.2 x 12.1 inches | 150dpi

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Human anatomy, including structure and development and practical considerations . ridi^e and the divernini>; mesial border of the upper surface of the thalamus, isincluded a narrow depressed trianirular area, known as the trigonum habenulae.It lies on a distinctly lower level than the adjoining conex upjjer surface of thethalamus. Since it contains a special nucleus and belongs to the eiMthalamus, itsdescription will be deferred until that region is considered (yd^(j: 1123). The upijersurface is not quite even, but subdixided by a shallow oblique furrow, which runsfrom before backward and outward and marks the jjosition of the overlying lateralborder of the forni.x. E.xternal to this furrow lies a free marginal zone that forms apart of the floor of the lateral entricle ; internal to it is an attached inner zone overwhich the velum interpositum is united to the thalamus. By the attachment of this 1k;. 966. Septum lucidum Taenia semiciroilaris andvena tenninalis Taenia chorioideaFurrow for fornix Tienia thalami Trigonum habenulre Pulviuar Corpora quadrigeniina. Corpus callosuni Caudate nucleus Anterior pillars of fornixForamen of Monro Anterior commissure Middle commissure in IIIventricle Thalannis Posterior commissurePineal body l.iuirula Thalami, cavidate nuclei and ventricles viewed from above after removal of corpus callosum. fornix andvelum interpositum ; third ventricle shows as narrow cleft between njesial surfaces of thalami. sheet to the fornix above and to the thalamus below, direct communication betweenthe third and lateral ventricles is shut off save through the foramen of Monro. Infront, the superior surface ends on the rounded elevation (tuberculura anterius thalami)which marks the anterior pole of the ganglion, while behind it goes over ontothe prominent posterior projection, the pulvinar, which oerhangs the superiorbrachium and the corpora geniculata. The mesial surface forms the greater partof the lateral w^all of the third ventricle. It is cov

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