CB7

• endocrine system 


  secretes hormones into the bloodstream from glands throughout the body
• hormones


  produce an effect on specific target organs in the body
• what does the adrenal gland release?


  adrenaline

  targets the heart and increases heart rate
• pituitary gland


  releases ADH growth hormone

  targets kidneys

  controls the water content of the blood

  increases reabsorption of water by the collecting ducts
• pancreas


  releases insulin

  targets liver

  controls the blood glucose level

  increases conversion of glucose into glycogen for storage
• link between endocrine and nervous system 


  both are control in the body

  hormones control how organs behave
• menstrual cycle 


  usually takes about 28 days

  during the period the lining of the uterus is prepared for the pregnancy

  if the egg does not enter the lining of the uterus then the lining is shed (menstruation)

  if a women is pregnant the placenta produces progesterone, which maintains the lining of the uterus and so a period does not happen
• 4 hormones that affect the period

  FSH

  oestrogen

  LH

  progesterone
• homeostasis


  maintaining constant conditions inside the body

  helps to prevent damage from the body from internal and external changes

  controls your body temperature

  control of water content
• how can you test for diabetes

  urine sample
• type 1 diabetes

  when the pancreas does not produce enough insulin because the cells have been destroyed by the body's immune system

  Cannot control glucose concentration in the blood
• type 2 diabetes 


  not responding to insulin or not producing enough

  can have some reaction

  could be caused by bad diet, obesity
• Treatment for type 1

  insulin injections

  medication
• Treatment for type 2

  eating healthy

  possibly medication (if severe)

  exercising regularly

  reduce blood glucose