homeostasis + animal control final revision

• fsh:


  rises and peaks on day 14

  purpose is to grow an egg and release it
• lh


  short period - day 14

  job is to release egg for ovulation
• oestrogen:


  stimulates the lining to grow
• progesterone


  maintains the lining of the uterus

  inhibits lh and fsh
• disadvantages of ivf


  expensive and doesnt always work - politics around unused embryoes
• homeostasis:


  the maintainence of constant internal environment
• for the body to work all the time we need to regulate the blood glucose, water and temperature levels
• brain role in homeostasis

  control centre
• cns role in homeostasis

  send signals to many parts of the body
• pancreas role in homeostasis

  produces insulin and glucagon
• muscles/ effector role in homeostasis

  moving/ shivers
• glands role in homeostasis

  hormone production
• type 1 diabetes cause

  genetics - pancreas doesnt produce the right amount of insulin
• type 2 diabetes cause

  cells become insensitive to insulin
• treatment of type 1

  insulin injections - amount of insulin depends on what they eat and how much exercise the person does
• type 2 treatment


  control diet and exercise
• symptoms of both types of diabetes

  weight loss

  increased urine + thirst

  blurred vision

  fatigue

  hunger