How does interstitial fluid or tissue fluid from ?

Interstitial fluid resembles

What is tissue fluid?

Where does tissue fluid come from?

Tissue (interstitial) fluid would most likely be found in

Name two osmolytes of interstitial fluid which help in making the urine hypertonic.

Blood diffuses out of the capillaries due to 1. hydrostatic pressure of Interstitial fluid 2. osmotic pressure of capillaries 3. hydrostatic pressure of capillaries 4. osmotic pressure of interstitial fluid

What solutes contribute to the high osmotic pressure of interstitial fluid in the renal medulla?