precapillary sphincters
By a process called "capillary" action.
diapedesis
Blood leaves a capillary through a venule, a small vein. At that point, the blood is making its journey back towards the heart.
Permeability
From the heart the blood moves through the Artirioles, through the systemic capillaries, through the precapillary sphincters to the Venules, and back to the heart. Otherwise they are generally just called capillaries
The movement of the WBC through a capillary is called diapedesis. In very general terms it is also called extravasation
Diapedesis
Yes, water can travel upwards through a process called capillary action, where water moves against the force of gravity through small spaces in a material. This phenomenon is seen in plants, where water moves from the roots to the leaves through capillary action.
Nutrient molecules pass from the small intestine into the through tiny structures called villi.
The tiny blood vessel is called as capillary. The diameter of the capillary is about 8 micrometer. They are present through out your body. They are present in your body in very large number. Together the cross sectional area of them all is about 2500 square cm.
Cerebrospinal fluid is primarily produced by specialized structures in the brain called choroid plexus, rather than capillary knots. These choroid plexus structures filter blood plasma to create cerebrospinal fluid, which serves to protect the brain and spinal cord.
Glucose and oxygen are transported from the blood to cells through capillary walls by a process called diffusion. The concentration gradient between the blood and the cells allows these molecules to passively move across the capillary walls. Once inside the cells, glucose and oxygen are used for energy production through cellular respiration.