DOI Page / Citation link:
https://doi.org/10.11588/diglit.12235#0048
29
EXPLANATION
OF
PLATE V.
IX this Plate the Brain alone is represented. It shows the Cho-
roid Plexus, and Velum Interpositum of Haller raised,
the Fornix being'taken away, and the Corpora Striata; the
Centrum Semicirculare Geminum; the Thalami Nervo-
rum Opticorum; and the Pineal Gland.
a. The Corpus Striatum1 : The Brain being now out so far down
as to show the intermingling of the cineritious and medullary
matter.
b. b. The Thalami Nervorum Opticorum2, which were al-
most intirely covered by the Fornix and Choroid Plexus.
1 In making a superficial horizontal section of these eminences, we find the cine-
ritious matter mixed with spots or points of medullary substance, because we cut
directly across the direction of the stria; of medullary matter, we must incline the
knife downwards, and outwards, to show the intermixture of the stria; of medullary
matter, and understand the meaning of the term. See a laboured description of
these several sections in a paper Mem. de V Acad. Roy. by Vicq. (FAzi/r.
2 Thalami—Juga Crurum Medulla; Oblongata;. The description of the situation
of the Thalami, their union, and their relation to the third Ventricle, is left very in-
tricate bv authors. We see, that though the Fornix be lifted, we are not in the third
Ventricle, for the Velum is interposed. Upon lifting the Velum we are not in the
EXPLANATION
OF
PLATE V.
IX this Plate the Brain alone is represented. It shows the Cho-
roid Plexus, and Velum Interpositum of Haller raised,
the Fornix being'taken away, and the Corpora Striata; the
Centrum Semicirculare Geminum; the Thalami Nervo-
rum Opticorum; and the Pineal Gland.
a. The Corpus Striatum1 : The Brain being now out so far down
as to show the intermingling of the cineritious and medullary
matter.
b. b. The Thalami Nervorum Opticorum2, which were al-
most intirely covered by the Fornix and Choroid Plexus.
1 In making a superficial horizontal section of these eminences, we find the cine-
ritious matter mixed with spots or points of medullary substance, because we cut
directly across the direction of the stria; of medullary matter, we must incline the
knife downwards, and outwards, to show the intermixture of the stria; of medullary
matter, and understand the meaning of the term. See a laboured description of
these several sections in a paper Mem. de V Acad. Roy. by Vicq. (FAzi/r.
2 Thalami—Juga Crurum Medulla; Oblongata;. The description of the situation
of the Thalami, their union, and their relation to the third Ventricle, is left very in-
tricate bv authors. We see, that though the Fornix be lifted, we are not in the third
Ventricle, for the Velum is interposed. Upon lifting the Velum we are not in the