ENDOCRINE SYSTEM'

• hormones = chemical messengers in blood
• glands secrete hormones
• stimulus - receptor - hormone - effector - response
• hormones have wider effects and last longer but have slower effects
• GLANDS AND HORMONES

  • hypothalamus - controls pituitary gland
  • pituitary gland - master gland
  • pineal gland - melatonin
  • thryoid - thyroxine for metabolism
  • parathyroid - controls calcium
  • thymus - immune system
  • adrenal - adrenaline
  • pancreas - insulin and glucagon
  • gonads - sex hormones