prosencephalon - définition. Qu'est-ce que prosencephalon
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Qu'est-ce (qui) est prosencephalon - définition

BACKWARD MOST PART OF THE BRAIN
Fore-brain; Forebrain of brain; Archencephalon; Prosencephalon

Prosencephalon         
·noun The Cerebrum.
II. Prosencephalon ·noun The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain.
prosencephalon         
[?pr?s?n's?f?l?n, -'k?f-]
¦ noun another term for forebrain.
Origin
C19: from Gk proso 'forwards' + encephalon.
Forebrain         
·noun The anterior of the three principal divisions of the brain, including the prosencephalon and thalamencephalon. Sometimes restricted to the prosencephalon only. ·see Brain.

Wikipédia

Forebrain

In the anatomy of the brain of vertebrates, the forebrain or prosencephalon is the rostral (forward-most) portion of the brain. The forebrain (prosencephalon), the midbrain (mesencephalon), and hindbrain (rhombencephalon) are the three primary brain vesicles during the early development of the nervous system. The forebrain controls body temperature, reproductive functions, eating, sleeping, and the display of emotions.

At the five-vesicle stage, the forebrain separates into the diencephalon (thalamus, hypothalamus, subthalamus, and epithalamus) and the telencephalon which develops into the cerebrum. The cerebrum consists of the cerebral cortex, underlying white matter, and the basal ganglia.

In humans, by 5 weeks in utero it is visible as a single portion toward the front of the fetus. At 8 weeks in utero, the forebrain splits into the left and right cerebral hemispheres.

When the embryonic forebrain fails to divide the brain into two lobes, it results in a condition known as holoprosencephaly.