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