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. Cunningham's Text-book of anatomy. Anatomy. 633 THE NERVOUS SYSTEM. The nucleus lentiformis lies on the lateral side of the caudate nucleus and thalamus, and is for the most part embedded within the white medullary sub- stance of the cerebral hemisphere. It does not extend either so far forwards or so far backwards as the caudate nucleus. Indeed, it presents a very close corre- spondence in point of extent with the insula on the surface. When seen in hori- zontal section, it presents a shape similar to that of a biconvex lens. Its medial surface bulges more than the lateral surface, and its
. Cunningham's Text-book of anatomy. Anatomy. 633 THE NERVOUS SYSTEM. The nucleus lentiformis lies on the lateral side of the caudate nucleus and thalamus, and is for the most part embedded within the white medullary sub- stance of the cerebral hemisphere. It does not extend either so far forwards or so far backwards as the caudate nucleus. Indeed, it presents a very close corre- spondence in point of extent with the insula on the surface. When seen in hori- zontal section, it presents a shape similar to that of a biconvex lens. Its medial surface bulges more than the lateral surface, and its point of highest convexity is placed opposite the stria terminalis or the interval between the caudate nuc- leus and the thala- mus. In frontal section the appear- ance presented by the lentiform nuc- leus differs very much in different planes of section. Fig. 568 represents a section through its anterior por- tion. Here it is semilunar or cres- centic in outline and is directly continuous below with the head of the caudate nuc- leus ; above, also, it is intimately connected with the caudate nucleus by bands of gray matter, which pass between the two nuclei and break up the white matter of the fore part of the inter- vening internal capsule. It is due to the ribbed or Genu of corpus callosum Auterior horn of lateral ventricle Caudate nucleus Anterior limb of internal capsule-! Cavum septi pellucidi Genu of internal capsule Columns of fornix Globus pallidus (of nucleus lentiformis) Fasciculus mamillo- thalamicus Posterior limb of internal capsule Thalamus Retrolenticular part of \&Mi internal capsule Hippocampus Splenium Chorioid plexus Gyrus cinguli Calcarine sulcu;. Fig. 56 Horizontal Section through the Right Cerebral Hemisphere at the Level of the Widest Part of the Lentiform Nucleus. barred appearance, which is presented by such a section as this, that the term corpus striatum is applied to the. two nuclei. In the region of the substantia perforata anterior both nuclei
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914