tissue fluid Flashcards
what does blood consist of?
plasma, red blood cell, white blood cells and palettes
what is plasma?
mostly water, transports sustance in solution
what do red blood cells do?
carry oxygen
what do white blood cells do?
immune cells
what do platelet do
involved in clotting
list the functions of blood?
Transports oxygen and carbon dioxide.
Transports nutrients from digestion.
Transports waste for excretion.
Transports hormones.
Transports food from storage.
Transports clotting factors
what does tissue fluid fill?
spaces between cells
what is the function of tissue fluid?
It is the site of diffusion between blood and body cells, providing cells with nutrients and oxygen while removing waste products. It also helps fight infection as it forms part of the immune response.
tissue fluid has the same composition as plasma except….
Tissue fluid has no red blood cells.
Tissue fluid has fewer proteins.
Tissue fluid has fewer white blood cells.
tissue fluid is formed from the blood flowing through the….
capillaries
at the arteriole end of the capillaries what happens?
A high hydrostatic pressure, exerted by the force of the heart pumping, forces fluid out of capillaries.
This forms tissue fluid surrounding body cells
describe hydro static pressure at the venule end of the capillaries?
lower
what happens with oncotic pressure at the venule end?
Proteins in blood exert a high oncotic pressure, a type of osmotic pressure, in capillaries.
at the venule end where us the water potential lower and why
The water potential is lower in capillaries than in tissue fluid due to fluid loss.
what happens to tissue fluid at the venule end
Some tissue fluid moves back into capillaries by osmosis.