Function: Controls body functions through chemical release
(growth, sexual development, fluid balance)
*Nervous System: acts instantly while Endocrine System more generally and slowly.
Homeostasis: balance maintained by the amount of hormones secreted and then stopped.
Hormones: chemical produced by glands.
released into bloodstream to get to where it is needed,
chemical message tells
specific cells what to do.
Glands: Group of cells that make a special chemical for the body.
Pituitary Gland- the "master gland"
attached to the hypothalamus in brain.
secretes hormones- stimulates other glands.
regulates amount of hormone discharge.
growth and retention of water.
Pineal Gland- also in brain.
onset of puberty.
Thyroid gland- around the trachea.
increases rate of energy use, metabolism.
growth and development.
gland- attatched to the thyroid.
calcium level in the blood.
Thymus gland- in the chest cavity
regulates the immune system, lymphocytes.
maturation of w.b.c. - to fight disease.
Adrenal glands- just above the kidneys.
help with stress and danger
fight or flight mechanism.
hormone: epinephrine (used to be adrenalin)
Pancreas- located by the stomach.
regulates blood sugar levels.
common disease: diabetes.
Ovaries: female secondary sexual characteristics
Testes: male secondary sexual characteristics.
HYPOTHALAMUS- within the brain.
connects the nervous system with the endocrine system.
produces both hormones and nerve impulses.
works with the pituitary gland.