Medical Lecture Notes

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Sunday, 14 January 2018

Dynamics of capillary exchange

Dynamics of capillary exchange

  • 5 main types  of blood vessels :

  1. Arteries – carry blood AWAY from the heart
  2. Arterioles
  3. Capillaries – site of exchange
  4. Venules
  5. Veins – carry blood TO the heart

  • What is hydrostatic pressure?

The pressure that the fluid exerts on the walls of its container.
Capillary pressure means Hydrostatic pressure
Colloid osmotic pressure means Oncotic pressure

  • What is osmotic pressure?

The pressure required to prevent the flow of water across a semipermeable membrane via osmosis .

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