NH+Endocrine+Notes

Pituitary Glands
 * secrete growth hormones
 * bone cells have growth hormone receptors (end of bones)

hormones are signals

Thyroid gland
 * hormone signals cells to burn energy- metabolism
 * hyperthyroid- burn a lot (too much) energy
 * hypothyroid- low metabolism- instead of using energy- body stores it and gains weight

Adrenal Gland
 * releases adrenalin
 * increases heart rate, blood flow, nutrients, releases sugar
 * used for energy
 * fight or flight response

Pancreas
 * secretes insulin
 * signals the cells to take up glucose
 * most cells have insulin receptors but muscle, liver and adipose cells have an especially high number of receptors

Urinary Systems
 * kidneys
 * clean the blood
 * small stuff gets out of the blood and into the kidney