anatomy and physiology Flashcards
where is the hypothalamus located?
- Hypothalamus is located below thalamus and above pituitary and brain stem
what is the primary function of the hypothalamus?
- Main role: control of homeostasis in the body and control many basic processes: HR, BP, sleep, gastric secretions, temp, fluid, balance and appetite
also secretes neurohormones
what do neurohormones do?
start and stop other hormones which act on other parts of endocrine system eg pituitary
what is master gland? (pituitary)
produces and secretes hormones that works together on other glands within the body
what is the infundibulum under hypothalamus?
- Located below hypothalamus and connected by infundibulum (hollow triangle like shape that connects structures)
what does the posterior pituitary gland produce?
mostly nervous and releases hormones direct from hypothalamus
what does anterior pituitary gland do?
produces and releases more upon receiving others from hypothalamus
name the hypothalamus hormones
ADH
oxytocin
thyrotropin inhibiting hormone
prolactin
corticosteroid releasing hormone
gonadotrophin releasing hormone
growth hormone
what is the role of ADH?
stimulates kidneys to increase water reabsorption into blood
what is oxytocin?
bonding hormone – involved in breast milk production, orgasm, ability to trust, social bonding, body temp regulation and sleep cycles
what is thyrotropin releasing hormone?
: triggers release of TSH which stimulates thyroid gland
what does prolactin hormones do?
production - stimulation production of breast milk
inhibiting
what does corticosteroid hormone do?
stimulates anterior pituitary to further stimulate adrenal glands and corticosteroids
what does gonadotropin releasing hormone do?
GnRH- stimulates anterior pituitary to release FSH (follicle stimulating hormone) and LH (luteinising hormone) for normal function of sex glands
what are the posterior pituitary hormones?
ADH
oxytocin
