Topic 7

Cards (23)

  • Homeostasis
    Constant maintenance of internal conditions to maintain optimal conditions for cellular reactions
  • Thyroxine produced in thyroid gland
  • Insulin and glucagon produced in the pancreas (behind stomach)
  • barrier advantage : no side effects, protects from sexually transmitted infections
  • hormone contraception's advantage : don't need to worry while having sex, more effective to prevent pregnancy
  • FSH causes follicle to mature and stimulates oestrogen
  • Oestrogen causes uterus lining to build up, inhibits FSH and stimulates LH,
  • LH causes ovulation
  • Progesterone is produced in the corpus luteum, maintains uterus lining and inhibits FSH and LH
  • FSH and LH produced in the pituitary gland
  • Oestrogen produced in the follicle or ovaries
  • Type 1 is when pancreas doesn’t produce enough insulin
  • Type 2 is when the cells stop responding to insulin
  • Glucagon is produced (glucose low) and causes liver to break down glycogen into glucose
  • If not enough glucose blood cells lyse (explode)
  • cells crenate (shrivel) if too much glucose
  • Adrenalin increases heart rate and breathing rate
  • Negative feedback is the form of control where change in a condition causes the opposite change to happen
  • Kidney is part of urinary system and helps with Osmoregulation
  • Nephrons is the filtration unit
  • In the Proximal convoluted tubule reabsorption of useful substances takes place
  • Water is low in the blood then ADH is secreted and collecting duct is more permeable
  • Ovulation is the release of an egg from the ovary