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The hypophysis front rag (HVL, or Adenohypohyse, lat.: Adenohypophysis) represents the smaller part of the hypophysis. It comes out evolutionary from the Rathke bag of the mouth bay and is thus no brain part. While the HVL represents the front part of the hypophysis with humans (and also Paarhufern), he surrounds the neuro hypophysis (hypophysis behind rag) with some mammals (e.g. carnivores and horses) completely. Therefore the term Adenohypohyse is to be preferred compare-anatomically.

Structure

The structure of the Adenohypohyse is typically for a endokrine gland, the cells also Pituizyten is called. Here numerous hormones are formed, which work as Effektor or tax hormones. The hormone production of the HVL is steered again by Releasing hormones and Statine hypothalami.

The hypophysis front rag consists of three parts:

  • The Pars distalis contains azidophile alpha, basophile beta, chromophobe gamma and azidophile Etazellen (=Schwangerschaftszellen).
  • In the cells '' of the Pars intermedia '' Melanotropin is formed.
  • Over the function of the Pars tuberalis up to now still nothing is well-known.

Glandotrope of hormones

Glandotrope of hormones are tax hormones of the hypophysis front rag, which adjust the hormone production of other endokriner organs:

  • TSH = Thyreoideastimulierendes hormone (Thyreotropin), stimulates the thyroid
  • ACTH = Adrenokorticotropes hormone, stimulates the suprarenal body crust
  • FSH = follicle-stimulating hormone, stimulates the gonad
  • LH = Luteinisierendes hormone, stimulates the gonad

The term glandotrop leites of lat. glandula (dt. gland) off and means itself as much as developing from glands.

Nichtglandotrope of hormones

Effektorhormone, which affect not endokrine glands, but directly on effector organs, are:

  • STH = Somatotropes hormone, Somatropin
  • MSH = Melanozyten stimulating hormone, Melanotropin
  • Prolaktin

See also: Hypophysis behind rag, hypophysis intermediate rag


Articles in category "Hypophysis front rag"

We found here 4 articles.

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» Hypophysis
» Hypophysis behind rag
» Hypophysis front rag
» Hypophysis intermediate rag

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