endocrine system

• describe endocrine system

  composed of endocrine glands that secrete hormones into bloodstream to target organ to produce effect
• give endocrine glands in endocrine system

  • pituitary gland
  • thyroid
  • adrenal glands
  • pancreas
  • testes
  • ovaries
• describe function of pituitary gland

  master gland that secrete multiple hormones that produce response and stimulate release of other hormones
• describe function of thyroid

  secrete thyroxine
• describe function of adrenal glands

  secrete adrenaline
• describe function of pancreas

  secrete insulin
• describe function of testes

  males only to produce testosterone for puberty and sperm production
• describe function of ovaries

  females only to produce oestrogen for puberty and menstrual cycle
• describe function of adrenaline

  produced by adrenal glands in times of fear or stress to prepare body for fight or flight response - increase heart rate, oxygen and glucose supply to brain and muscles
• describe function of thyroxine

  produced by thyroid to regulate basal metabolic rate for growth and development
• describe function of thyroxine 


  produced by thyroid to regulate basal metabolic rate for growth and development
• describe affect of tsh

  released by pituitary gland to increase thyroxine release from thyroid