In vertebrate embryonic development, the retina and the optic nerve originate as outgrowths of the developing brain, specifically the embryonic diencephalon; thus, the retina is considered part of the central nervous system ( CNS ) and is actually brain tissue.
42.
Not only a boundary, the ZLI is also a shh " in other regions of the forebrain, known as the prosencephalon during development ( both the telencephalon and diencephalon ), inducing a ZLI-like region that induces thalamic fate.
43.
Several areas of the human brain are not on the brain side of the BBB . Some examples of this include the circumventricular organs, the roof of the third and fourth ventricles, capillaries in the pineal gland on the roof of the diencephalon and the pineal gland.
44.
The two largest are the lateral ventricles in the cerebrum; the third ventricle is in the diencephalon of the forebrain between the right and left thalamus; and the fourth ventricle is located at the back of the pons and upper half of the medulla oblongata of the hindbrain.
45.
The amnesia that is associated with this syndrome is a result of the atrophy in the structures of the diencephalon ( the thalamus, hypothalamus and mamillary bodies ), and is similar to amnesia that is presented as a result of other cases of damage to the medial temporal lobe.
46.
The midbrain comprises the tectum ( or corpora quadrigemina ), tegmentum, the cerebral aqueduct ( or ventricular mesocoelia or " iter " ), and the cerebral peduncles, as well as several nuclei and fasciculi . rostrally it adjoins the diencephalon ( thalamus, hypothalamus, etc .)
47.
As the embryo transforms from a round blob of cells into a wormlike structure, a narrow strip of ectoderm running along the midline of the back is telencephalon ( which will contain the cerebral cortex, basal ganglia, and related structures ) and the diencephalon ( which will contain the thalamus and hypothalamus ).
48.
It is involved in the special sense of vision and sends its superior brachium to the lateral geniculate body of the diencephalon . " and " Some taxonomies describe the brain stem as the medulla and mesencephalon while others include diencephalic regions . " Does that qualify, or is it just a misguided synthesis, constituting original research?
49.
The output connections of the pre-LC have been studied extensively, using anterograde axonal tracing experiments followed by retrograde axonal tracing experiments that utilized FoxP2 as a marker for the neurons in pre-LC . Pre-LC neurons project heavily to the diencephalon, particularly to subregions of the midline thalamus and the posterior and lateral hypothalamus.
50.
These glia will secrete repulsive Semaphorin 5a and Slit in a surround fashion, covering the optic nerve which ensures that they remain in the optic nerve . " Vax1, " a transcription factor is expressed by the ventral diencephalon and glial cells in the region where the chasm is formed, and it may also be secreted to control chasm formation.
