craniobuccal pouch
Rathke\'s pouch (an embryonic invagination of the stomodeal ectoderm (roof of the embryonic mouth) which migrates dorsally to come into contact with diencephalon. It differentiates into the anterior pituitary gland or adenohypohysis. It becomes a blind naso-hypophyseal canal in some Agnatha or develops secondary opening to the outside with or without a connection to the mouth)

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • craniobuccal pouch — craniopharyngeal pouch Rathke p …   Medical dictionary

  • Rathke's pouch — an embryonic invagination of the stomodeal ectoderm (roof of the embryonic mouth) which migrates dorsally to come into contact with diencephalon. It differentiates into the anterior pituitary gland or adenohypohysis. It becomes a blind naso… …   Dictionary of ichthyology

  • Rathke pouch — a diverticulum from the ectodermal roof of the stomodeum of the embryo that lies adjacent to the floor of the diencephalon; from it the adenohypophysis is developed. Its lumen persists in adults as small colloid filled cysts and clefts at the… …   Medical dictionary

  • Rathke cysts — Rathke cleft cysts groups of epithelial cells forming small colloid filled cysts in the pars intermedia of the pituitary gland; they are vestiges of Rathke pouch and are closely related to craniopharyngiomas. Called also craniobuccal c s and… …   Medical dictionary

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