Rhombomere

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Rhombomere

Rhombomere (pronunciation: /ˈrɒmbəˌmɪər/) is a term used in Embryology to describe the transverse segments of the developing vertebrate hindbrain or metencephalon. The term is derived from the Greek words 'rhombos' meaning 'rhombus' and 'meros' meaning 'part'.

Etymology

The term 'Rhombomere' is a combination of two Greek words. 'Rhombos' which means 'rhombus' due to the rhombus shape of the segments, and 'meros' which means 'part', referring to the segments of the developing hindbrain.

Description

In the early stages of vertebrate embryonic development, the hindbrain differentiates into seven distinct segments known as rhombomeres. Each rhombomere gives rise to specific regions of the adult brain and has a unique pattern of gene expression.

Related Terms

  • Hindbrain: The posterior part of the brain comprising the cerebellum, pons, and medulla oblongata.
  • Metencephalon: The part of the embryonic brain that develops into the pons and the cerebellum.
  • Gene expression: The process by which the genetic code - the nucleotide sequence - of a gene is used in the synthesis of a functional gene product.

See Also

External links

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