yes
Veins
Yes
protien in the blood plasma
Tissue Fluid
yes it does!
Maintain the osmotic pressure of the blood.
Plasma moves out of blood into capillaries primarily due to the processes of filtration and osmotic pressure. Hydrostatic pressure, generated by the heart's pumping action, pushes plasma out of the capillaries into surrounding tissues. Additionally, osmotic pressure, primarily influenced by proteins like albumin in the blood, draws water back into the capillaries, balancing the movement of fluid. The interplay between these forces regulates the exchange of plasma and nutrients between blood and tissues.
No, capillaries do not have non-return valves. Non-return valves are found in veins to prevent blood from flowing backwards. Capillaries function to allow the exchange of nutrients and waste products between blood and tissues.
they leak plasma
Because if blood pressure in lung capillaries was as high as it is in body capillaries, the hydrostatic pressure caused by this blood pressure would force blood plasma out of the capillaries into intracellular spaces (as is done in body capillaries) or into the alveoli. This would reduce the efficiency of gas exchange.
Charles Drew helped collect 14,500 pints of blood plasma for the Blood for Britain project.
The 4 blood vessels are plasma, arteries, veins, and capillaries. From: Joey Sukupantee