Lab 10 Flashcards
thyroid stimulating hormone…
tropic, thyroid, stimulates release of thyroxine (t4) and triiodothyronine (t3)
adrenocorticotropic hormone…
tropic, adrenal cortex, stimulates release of steroid hormones, especially glucocorticoids
prolactin..
not tropic, mammary tissue, stimulates milk production
melanocyte stimulating hormone…
not tropic, epidermal melanocytes, promotes epidural pigment production
follicle stimulating hormone in female…
tropic, ovarian follicle, promotes follicle maturation and estrogen secretion
follicle stimulating hormone in male…
not tropic, nurse or sertoli cells, promotes maturation of spermatozoa
luteinizing hormone in female..
tropic, mature ovarian follicle, triggers ovulation and formation of corpus luteum; stimulates secretion of estrogen and progesterone
luteinizing hormone in male…
tropic, interstitial cells, stimulates secretion of testosterone
growth hormone in female..
not tropic, all cells, stimulates protein synthesis and cell division for growth; stimulates breakdown of fat and glycogen to fuel growth
growth hormone in male…
not tropic, adipose and liver, stimulates breakdown of fat and glycogen to fuel growth
antidiuretic hormone…
not tropic, renal tubules-stimulates water reabsorption
smooth muscles of BV- vasoconstriction
oxytocin…
not tropic, uterine myometrium- stimulates uterine contractions
mammary glands- milk ejection
role of the hypothalamus in regulating pituitary function?
neurons produce tropic hormones that regulate anterior pituitary hormones, secrete releasing hormones and inhibiting homrmones
hypothalamus produces ADH and oxytocin which is transported along axons of tract and stored in synaptic terminals, released from pituitary
stimulates anterior pituitary to release and produce hormones
hormone produced by thyroid follicle and function?
T3 and T4-
increases metabolic rate and ATP production
increases body temp in children
promotes normal development of neural, skeletal and muscular systems
hormone produced by C cells and function?
calcitonin, lowers blood calcium
hormone associated with parathyroid glands and function?
parathyroid hormone-
raises blood calcium levels
increased absorption, decreased urinary loss
hormone associated with pineal gland and function?
melatonin- regulates timing of sexual maturity
maintains circadian rhythms
protects against free radical damage in CNS
hormone associated with thymus and function?
thymosin, stimulates maturation of lymphocytes
hormones associated with adrenal cortex?
mineralocorticoid- stimulates renal Na+ reabsorption & K+ excretion
glucocorticoid- stimulates fat and protein breakdown for fuel for repair; anti-inflammatory
gonadocorticoid- promotes pubic hair growth, maintains libido
hormones associated with adrenal medulla and function?
epinephrine and norepinephrine, prolong sympathetic response
hormone associated with pancreas produced by alpha cells?
glucagon- increase blood glucose levels by stimulating glycogen breakdown
hormone associated with pancreas produced by beta cells?
insulin- decreases blood glucose levels
what is hypoglycemia and the causes?
hypoglycemia is decreased blood glucose levels that results from inadequate food intake or too much insulin.
what is hyperglycemia and the causes?
elevated blood glucose levels, not tnough insulin or cells do not produce enough insulin in pancreas
is there a relationship between blood glucose levels and time since eating?
not vastly different, but levels of blood glucose are lower for individuals who have not eaten recently. When you have just ate, insulin is released to decrease the blood glucose levels.
type 1 vs type 2 diabetes?
type 1- pancreas produces little or no insulin
type 2- body resists the effect of insulin or doesnt produce enough
risk factors of type 2 diabetes?
overweight, not very active, older age
what are the three things to look at for blood glucose levels on a chart?
starting (high, normal, low), level after ingestion, and level continuing on
what hormone regulates blood glucose and would be circulating in the blood of fasted patients?
glycogen
