Prosencephalon

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Prosencephalon

Prosencephalon (pronounced proh-sen-SEF-uh-lon) is a term used in neuroanatomy to describe the embryonic structure that develops into the forebrain.

Etymology

The term "prosencephalon" is derived from the Greek words "pros," meaning "forward," and "encephalon," meaning "brain."

Definition

The prosencephalon is the most anterior part of the vertebrate central nervous system. It is one of the three primary brain vesicles that arise from the neural tube, the other two being the mesencephalon (midbrain) and the rhombencephalon (hindbrain).

Development

During embryonic development, the prosencephalon further divides into two secondary brain vesicles: the telencephalon and the diencephalon. The telencephalon gives rise to the cerebral cortex, basal ganglia, and limbic system, while the diencephalon develops into the thalamus, hypothalamus, epithalamus, and subthalamus.

Related Terms

  • Neurogenesis: The process by which neurons are generated from neural stem cells.
  • Neurulation: The formation of the neural tube during the early development of the nervous system.
  • Neural crest: A transient embryonic structure that gives rise to various cell types in the vertebrate body.

External links

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