drug therapy for pituitary and hypothalamic dysfunction Flashcards
describe the hypothalamus
- “master gland”
- constantly monitors body’s homeostasis
- coordinates responses through autonomic, endocrine, and nervous systems
- receives input from the rest of the brain (acts as a sensor for electrolytes, chemicals, and hormones)
- stimulates or suppressess endocrine, autonomic, and CNS activity
the hypothalamus produces hormones to send to…
the pituitary
what are some factors that stimulate the pituitary
sent from the hypothalamus
- corticotropin-releasing hormone (CRH)
- growth hormone releasing hormones (GHRF)
- thyroid-releasing hormone (TRH)
- gonadotropin-releasing hormone (GnRH)
- prolactin-releasing hormone (PRH)
what are some factors that inhibit the pituitary
sent from the hypothalamus
- somatostatin (growth hormone release-inhibiting factor)
- prolactin-inhibiting factor (PIF)
what does corticotropin-releasing hormone (CRH) do
release of corticotropin during stress
what does growth hormone-releasing hormone (GHRH) do
release growth hormones
what does thyroid-releasing hormone (TRH) do
releases TH during stress
what does gonadotropin-releasing hormone (GnRH) do
releases FSH and LH
what does prolactin-releasing hormone (PRF) do
lactation and childbirth
what does somatostatin (growth hormone releasing inhibiting factor) do
inhibits release of growth hormone
what does prolactin-inhibiting factor (PIF) do
inhibits lactation
there are three lobes of the pituitary gland, what are they?
- anterior
- posterior
- intermediate (dont worry bout it)
what 6 hormones are released by the anterior pituitary
- GH
- ACTH
- FSH
- LH
- PRL
- TSH
what does the posterior pituitary store
- ADH (vasopressin)
- oxytocin
what does corticotropin (ACTH) do
stimulates production of corticosteroids
what does growth hormone AKA somatotropin (GH) do
stimulates growth of body tissues
what does thyroid stimulating hormone (TSH) do
regulates secretion of thyroid hormones
what does follicle stimulating hormone (FSH) do
stimulates function of sex glands
what does luteinizing hormone (LH) do
stimulates hormone production
what does prolactin hormone (PLH) do
milk production in mothers
what does antidiuretic hormone AKA vasopressin (ADH) do
regulates water balance
what does oxytocin do
uterine contractions, milk letdown