It is unique from other capillary beds in that it is supplied with and drained by arterioles, the afferent arteriole and efferent arteriole, respectively.
Drain into an arteriole instead of a venule
because inflammation of the glomerular capillaries reduces its reabsorption capacity and hence loss of glucose.
if a capillary bursts it is no biggie. it is just like getting a paper cut. you don't bleed a lot because in capillaries it is easy for platelets to heal it.
Cells need to be near capillaries because capillaries carry blood which in turn brings food/fuel to the cells and removes waste products.
The capillary oncotic pressure is higher because of the plasma proteins trapped within the capillaries. The high oncotic pressure pulls the water from from the interstitium into the capillary.
The capillaries have the thinnest walls of any of the blood vessels. The capillary wall is made up of a single layer of endothelium lying on a delicate basement membrane. The thin capillary wall enables water and dissolved substances, including oxygen, to diffuse from the blood into the tissue spaces, where they become available for use by the cells. The capillary also allows waste from the metabolizing cell to diffuse from the tissue spaces into the capillaries for transport by the blood to the organs of excretion. The capillaries are called exchange vessels because they allow for an exchange of nutrients and waste.
The diameter of the afferent renal arteriole narrows progressively more and more into the glomerular capillaries, with the same blood flow, leading to an increase in pressure within the glomerulus. This is so that the high pressure can force solutes and water across into the Bowman's capsule for the renal tubules.
false
because of the substance that enters through the bloodstream and through the capillary networks in the skin......................
The capillary is the only blood vessel where things can be exchanged because it is so thin (one cell thick). Capillaries have a single cell layer of squamous epithilium.
the smallest blood vessel is the capillary, then the vein, and the artery. (vein and artery depends though because when they diffuse they get smaller and close to the same size) but the smallest will always be the capillary.
The capillaries are where the gas and nutrient exchanges occur. Because in a closed circulation system the blood can't go outside the vessels, it must go to the capillary beds where it is about 1 cell thick to have diffusion. Alveoli in lungs are covered by capillaries to allow gas exchange to happen. The capillaries are most abundant of all the blood vessels, because most part of your body requires oxygen, and capillaries are where it can be given to cells.
Capillaries are typically dark purple, because they are so far away from the point where they were oxygenated, and the redness in blood is caused by oxygen being present in the blood. But capillaries can be dark red when they are delivering blood.