endocrine system ch10 Flashcards
glands
organ or structure secretes a substance
hormones
chemicals released by a cell in one part of body, sends message
endocrine glands
ductless glands release hormones into blood stream
exocrine
have ducts, secretes to outside the body
pituitary gland
master gland, known as hypophysis, located below hypothalamus(tells what to do)
anterior pituitary hormones
TSH, ACTH, FSH, LH, PRL, GH
posterior pituitary hormones
OT, ADH
thyroid gland
located in neck ventral to trachea, thyroxine calcitonin triiodothyronine radioactive iodine
parathyroid gland
near thyroid PTH bones to blood stream
adrenal gland
top of kidneys (hat) made up of cortex and medulla
adrenal cotex
outer section, secretes corticosteroids
medulla
inner section secretes catecholamines
pancreas
boomerang below stomach, insulin, glucagon, blood glucose,
insolinoma
tumor of pancreas, too much insulin, low blood sugar
thymus
T cells lower than thyroid
pineal gland
brain, melatonin, biological clock, sleep better
gonads
testes ovaries
aldosterone
adrenal corte, controls sodium reabsorption and potassium excretion
calcitonin
thyroid gland to regulate calcium levels
catecholamines
epinephrine and norepinephrine
corticosteroids
cortex, steroids, glucocorticoids and mineralocorticoids
cortisol
cortex, stress, increases blood sugar
electrolytes
functioning of cells, sodium, potassium, chloride, phosphorus, magnesium, calcium
epinephrine
medulla, increase blood pressure, hr, bg, adrenaline
estrogen
ovaries, female sex characteristics
glucagon
pancreas to increase BS
glucocorticoids
regulate metabolism of carbs, fats, proteins, anti-inflammatory, cortisol
homeostasis
equilibrium of bodys internal environment
hormone
chemical messengers, lock and key, bind to sites on other organs to trigger an action
insulin
hormone produced by the pancreas to decrease blood sugar
mineralocorticoid
corticosteroids produced by adrenal medulla to promote vasoconstriction,increase blood pressure, increase heart rate
ovaries
female sex organs estrogen and progesterone
oxytocin
hormone produced by the posterior pituitary to stimulate uterus and secrete milk
pancreas
endocrine gland that secretes insulin and glucagon
parathyroid gland
4 small endocrine glans on posterior aspect of thyroid to regulate calcium
pituitary gland
endocrine gland at the base of brain, master gland
progesterone
ovaries protect embryo and stimulate lactation
testes
male gonads produce spermatozoa and testosterone
testosterone
hormone produced by testes, male sex characteristics
thyroid gland
endocrine gland, largest storage of iodine
thyroxine
T4 thyroid, regulate metabolism, tetraiodothyronine
triiodothyronine
T3 thyroid, regulate metabolism
adrenocorticotropic hormone
ACTH, anterior pituitary stimulates adrenal cortex
antidiuretic hormone
ADT, posterior pituitary controls re absorption of water by kidneys
follicle stimulating hormone
FSH, pituitary to stimulate maturation of ovum
growth hormone
GH, anterior pituitary to stimulate growth of bones and tissues, somatotropin
luteinizing hormone
LH, anterior pituitary to promote ovulation
parathormone
PTH, parathyroid to regulate calcium and posphorus
prolactin
PRL, anterior pituitary stimulates milk secretion
thyroid stimulating hormone
TSH, anterior stimulates thyroid to produce thyroid hormones
dexamethasone suppression test
test to measure bodys response to dexamethasone injection to diagnose cushings disease and its cause
diabetes insipidus
DI lack of ADH secretion
diabetes mellitus
DM lack of insulin or resistance to
diabetic ketoacidosis
DKA low blood pH due to build up of ketones in diabetics
hyperadrenocorticism
excessive cortisol produced by adrenal cortex, cushings disease
hypoadrenocorticism
lack of cortisol adrenal cortex addisons disease
hyper/hypocrinism
condition of excessive/low secretion from a gland
hyper/hypogonadism
excessive/low gonad hormone secretion
hyper/hypoinsulinism
excessive/low insulin secretion from pancreas
hyper/hypoparathyroidism
excessive/low secretion of parathormone
hyper/hypopituitarism
excessive/low secretion from pituitary gland
hyperthyroidism
excessive symptoms are hyperactivity weightloss increased appetite. cats
hypothyroidism
deficient symptoms include lethargy weight gain hair coat changes. dogs
insulinoma
tumor on pancreas causing excessive secretion of insulin. ferrets
panhypopituitarism
hypopituitarism due to absence of all pituitary gland
pheocromocytoma
tumor in adrenal medulla causing secretion of catecholamines. dogs cattle
pituitarism
any disorder of pitutiary
T3 suppression test
administration of T3 to diagnose borderline hyperthyroidism
thyrotoxicosis
excessive life threatening amounts of thyroid hormones