Isehemia is the medical term meaning holding back blood from tissue. Ischemia prevents tissue from getting enough oxygen.
valve
The name for fluid build up in the kidneys is called edema. The lymphatic system is not returning excess fluid back to the blood as it should.
Venous valves .
the valves
Pathway of blood to tissue capillies and back to heart.
At the proximal end of capillary, you get the fluid out in the tissue fluid due to blood pressure. At the distal end of the capillary, you get back the tissue fluid due to oncotic pressure of the blood proteins.
blood cells
Arteries carry blood to the tissues, and veins carry blood back to the heart. In betweenare tiny blood vessels so small that red blood cells can pass through single file, allowingthe oxygen to diffuse into the surrounding tissue. These are called capillaries.
Veins carry blood back to the heart.
moves water from the urine back into the blood
A condition called lymphedema, which is characterized by pronounced swelling.
Arteries have smooth muscle in their walls. The smaller the artery is, the less muscle is found. Veins have none, they count on the skeltal muscles to move blood back to the heart. The veins also have valves which prevent back flow.