tissue fluid

• why does tissue fluid exist?


  bc its logically impossible for every cell to be delivered oxygen by its own capillary.
• what is tissue fluid?


  the fluid that surrounds all cells in tissues, comes from blood plasma and contains essential molecules.
• what are some molecules that are in tissue fluid?


  oxygen, glucose and amino acids. etc
• what is the role of tissue fluid?


  tissue fluid provides a medium through which required and waste materials can be passed in and out of the tissues.
• are all cells surrounded by tissue fluid? why?


  yes! To make sure every cell has the best capabilities for diffusion of these substances.
• where does tissue fluid come from?


  the blood
• explain ultrafiltration


  the blood enters the capillaries from the arterioles, the smaller diameter results in a higher hydrostatic pressure so molecule are forced out.
• what happens after tissue fluid has served its purpose?


  its returned to the circulatory system, normally via the capillaries.