Hormones
Causes growth of muscle and bone
growth hormone (GH)
releases glucagon
pancreas
Function of testosterone
develops male characteristics and matures sperm
feedback mechanism that prevents small changes from getting larger
negative feedback
Cells that hormones act upon are called ______ cells
target
stimulates the thyroid
thyroid-stimulating hormone (TSH)
releases calcitonin
thyroid
Function of antidiuretic hormone (ADH)....
make less pee! Causes body to retain urine
feedback mechanism that amplifies changes
positive feedback
For a hormone to act upon a certain organ, it must contain a _________ for that hormone
receptor protein for that hormone
lowers blood glucose levels
insulin
releases growth hormone
anterior pituitary
function of parathyroid hormone
increase blood calcium levels
the cause for something to happen...
stimulus
The release of hormones can be triggered by humoral, hormonal, or ______________ responses.
neural
increases blood calcium level
parathyroid hormone
stores and releases oxytocin
posterior pituitary
function of prolactin...
the regulation of blood glucose and blood calcium levels is a ____________ feedback mechanism
negative
During direct gene activation, hormones bind to a protein receptor located where?
in the nucleus
stimulates maturation of the egg and sperm
follicle-stimulating hormone (FSH)
releases melatonin
pineal gland
function of mineralcorticoids...
electrolyte (Na and K) balance and regulation
blood clotting is ____________ feedback mechanism
positive
Second messenger system