Pituitary Flashcards
Adenohypophysis divisions
pars distalis, pars intermedia, and pars tuberalis
Anterior lobe
pars distalis
what is regulated by releasing hormones from the hypothalamus ?
Adenohypophysis
Acidophils
- somatotropic cells and the lactotropic cells.
- secrete growth hormone and prolactin
Basophils
- gonadotrophic, corticotrophin cells and thyrotropic cells.
- secretes FSH,LH,ACTH &TSH
Lactotropic
prolactin
Thyrotropic
thyroid stimulating hormones
Somatotropic cells
Growth hormone
Corticotropic cells
- Adrenocorticotrophic hormone (ACTH)
- Melanocyte- stimulating hormone (MSH)
Gonadotropic cells
- Follicle stimulating hormone
- Luteinizing hormone
Growth hormone
Stimulates growth of bones , muscles and other organs
TSH
Stimulates the thyroid gland to secrete thyroid hormones
ACTH
stimulates the secretion of hormones from adrenal cortex
FSH &LSH
Regulate ovaries and testes
Prolactin
Production of breastmilk during lactation
Neurohypophysis
pars nervosa, infundibular stalk, and median eminence.
Posterior lobe
PARS NERVOSA
Infundibulum
Connects the pituitary to the hypothalamus
Hormones secreted by the posterior loBE
-antiduretic hormone and oxytocin
ADH
water reabsorption by the kidney
Oxytocin
Uterine contractions