Ante-pituitary gland
The ante-pituitary gland (or adénohypophyse ) is the lobe former of the Hypophyse and belonged to the Appareil endocrinien.
Under the influence of the Hypothalamus, the ante-pituitary gland produced and various peptide hormones secretes which controls various physiological processes, the such Stress, the growth and the reproduction.
It secretes the Growth hormone, the Prolactine, the folliculo-stimulative Hormone (FSH) and the Hormone lutéinisante (LH), the Thyréostimuline (TSH), the Hormone adrénocorticotrope (ACTH), the Mélano-stimuline (MSH), of the Endorphine S, and others Hormone S.
In the event of defect of production one speaks about hypopituitarism (antéhypophysaire insufficiency). It can be a question of a deficit total or localized (thyréotrope insufficiency e.g.). When the deficit relates to all the hormones produced by the Hypophyse one speaks then about Panhypopituitarisme (found for example at the time of a total Hypophysectomie).
Anatomy and development
Gland Anterior to the Neurohypophysis, Caudal to the hypothalamus, and sits in the Medial aspect off the Brain. Its Blood supply is the Hypophyseal artery, and it secrete hormones into the Hypophyseal vein.Epithelial The anterior pituitary is derived from the ectoderm off the roof off the Embryo NIC Mouth. -->
Histology
August 1st
Physiology
- Thyrotrope S secretes Thyroid stimulating hormone (TSH)
- Gonadotrope S secretes Luteinizing hormone (LH) and Follicle stimulating hormone (FSH)
- Corticotrope S secretes Adrenocorticotropic hormone (ACTH)
- Lactotrope S secretes Prolactin
- Somatotrope S secretes Growth hormone.
Electron microscopy and Immunohistochemistry allow further identification off the hormone produced by the concealments. -->
Principal secreted hormones