Applying ice to your ankle decreases the blood flow through nearby capillaries. This occurs because the capillaries constrict to conserve heat.
Blood does not move faster through the capillaries. Blood flow is slowest in the capillaries.
Platelets are cell fragments that prevent blood from leaking through capillaries
Both red and white blood cells pass through the capillaries.
Blood passes through the capillaries, which provide a passage way for the blood from the arteries to the veins. The tiny, thin walled capillaries also allow for the exchange of gases through the tissue. You can read more about capillaries at fi.edu
The alveoli and capillaries in the lungs pass oxygen to the blood. Both have very thin walls, which allow the oxygen to pass from the alveoli to the blood. The capillaries then connect to larger blood vessels, called veins, which bring the oxygenated blood from the lungs to the heart.
The tiniest tubes that carry blood are the capillaries. These connect arteries and veins.
capillaries
Veins and artery's and Capillaries
Perfusion
As blood flows through capillaries, it exchanges nutrients, wastes, and oxygen with body tissues. This transfer is accomplished via diffusion.
hepatic portal vein.
Blood moves from the capillaries and into the veins.