Tissue fluid, etc. :D

Tissue fluid carries oxygen to cells, takes waste products. Important substance.

What is tissue fluid?

• formed from blood plasma, leaking out of the capillaries.
• Is a watery liquid that contains glucose, amino acids, fatty acids, salts and oxygen. Tissue fluid supplies all these substances to the tissues and also recieves waste materials, for example, carbon dioxide from the tissues.
• Is the means by which materials are exchanged between the blood and cells of the body
• It provides a very constant environment for cells.

Lymphatic system starts in capillaries, series of tubes, join to make bigger lymph nodes.

Formation of tissue fluid and return to circulatory system:

• Blood leaving heart passes along arteries, narrower arterioles, and then even narrower capillaries.
• This creates a pressure called hydrostatic pressure at the arterial end of the capillaries
• Hydrostatic pressure forces fluid (and plasma) out.
• This is opposed by the hydrostatic pressure of the tissue fluid outside, and the lower water potenital in the due to the plasma proteins that pulls water back into the arteries.

Thoughts?

-Nin.