prosencephalon


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Related to prosencephalon: holoprosencephaly

prosencephalon

 [pros″en-sef´ah-lon]
1. the portion of the brain developed from the anterior of the three primary brain vesicles in the early embryo, comprising the diencephalon and telencephalon.
2. the most anterior of the primary brain vesicles; called also forebrain.

pros·en·ceph·a·lon

(pros'en-sef'ă-lon), [TA]
The anterior primordial cerebral vesicle and the most rostral of the three primary brain vesicles of the embryonic neural tube; it subdivides to form the diencephalon and telencephalon.
Synonym(s): forebrain vesicle ☆ , forebrain ☆ , proencephalon
[G. prosō, forward, + enkephalos, brain]

prosencephalon

(prŏs′ĕn-sĕf′ə-lŏn′)
n.
The forebrain.

pros′en·ce·phal′ic (-sə-făl′ĭk) adj.

pros·en·ceph·a·lon

(pros'en-sef'ă-lon) [TA]
The anterior primordial cerebral vesicle and the most rostral of the three primary brain vesicles of the embryonic neural tube; it subdivides to form the diencephalon and telencephalon.
Synonym(s): forebrain.
[G. prosō, forward, + enkephalos, brain]

prosencephalon

The forebrain.
References in periodicals archive ?
(5) Holoprosencephaly is a defect caused by failure of the prosencephalon to divide into hemispheres, and it is one of the main CNS abnormalities associated with trisomy 13.
According to the Cornell Feline Health Center, many of the signs of cognitive dysfunction may also be traced to a neurologic disorder in the prosencephalon (front part of the brain), which controls everything from vision and hearing to sleeping and eating.
The vein of Galen (formed from the median vein of the prosencephalon) is formed by the union of the two internal cerebral veins and goes on to drain into the straight sinus.
The 3 primary vesicles are the forebrain (prosencephalon), midbrain (mesencephalon) and hindbrain (rhombencephalon).
The lateral ventricles develop in the forebrain (prosencephalon).
The primary and secondary vesicles (prosencephalon, mesencephalon and rhombencephalon) form the cerebrum, midbrain, cerebellum and lower brainstem.