endocrine system

• The Endocrine System


  They are chemical messengers sent in the blood
• Hormones

  Chemical messengers sent in the blood
• Hormones act on cells in particular parts of the body but only of certain types
• Insulin and Glucagon


  Hormones produced by the pancreas
• Thyroid gland

  • Part of the endocrine system
  • Produces hormones
• Pituitary gland


  • Also known as the 'master gland'
  • Produces hormones that regulate other endocrine glands
• Adrenal gland

  • Part of the endocrine system
  • Produces hormones that help the body respond to stress
• Pancreas


  Produces hormones that control puberty and blood sugar levels
• With Diabetes


  The pancreas does not produce enough insulin or the body cannot use it effectively
• Nerves


  • Very fast response
  • Act for a very short time
  • Act on a very precise area
• Hormones


  • Slower action
  • Act for a long time
  • Act in a more general way
• If the response is quick, it's probably nervous. If the response lasts for a long time, it's probably hormonal.
• Hormones control various organs and cells in the body, though they tend to control things that aren't immediately life-threatening
• Diabetes can occur when the pancreas does not produce enough insulin or the body cannot use it effectively
• Type 1 diabetes is caused by the body's immune system attacking the cells in the pancreas that produce insulin
• Type 2 diabetes occurs when the body becomes resistant to the effects of insulin
• Mood and sugar levels can be affected by diabetes
• This stuff can seem complicated, but in the exam you should be able to interpret the data and answer the questions