Question

Identify whether the following statements are true/false.

Tissue fluid is composed of plasma, $WBCs$ and $RBCs$.

Answer 1

• As the blood flows in the capillaries of the tissues, the plasma and the leukocytes leak out through their walls.
  
• This fluid baths the cells and is called the tissue fluid or extracellular fluid.
  
• Thus, tissue fluid contains $WBCs$ but lack any $RBCs$.
  
• This is because $RBCs$ are too large to pass through the walls of the blood vessels.