Week 19- Renal system

• LOs for the week:

  
• Lecture 1 & 2 LOs:

  
• What is osmosis?

  • Flow of water across semipermeable membrane
  • Water moves into & out of cells via osmosis
  • Osmosis determined by osmolarity of the solutions
  • If osmolarity uncontrolled, can lead to oedema & swelling

  
• How does osmolarity (tonicity) affect cells?

  Cells shrink or swell depending on osmolarity of solution

  
• What process is the kidney a key organ in?

  Regulation of body fluid osmolarity