Capillaries are the smallest of a body's blood vessels, measuring 5-10 μm in diameter, which connect arterioles and venules, and enable the interchange of water, oxygen, carbon dioxide, ...
capillaries Small, thin-walled blood vessels that allow oxygen to diffuse from the blood into the cells and carbon dioxide to diffuse from the cells into the blood. PICTURE ...
capillaries
One of the many minute blood vessels that connect arterioles and venules in vertebrate tissues, allowing a high level of exchange of materials between blood and tissues via the interstitial fluid.
The Capillaries."The smaller arterial branches (excepting those of the cavernous structure of the sexual organs, of the splenic pulp, and of the placenta) terminate in net-works of vessels which pervade nearly every tissue of the body.
Capillaries, shown in Figures 4 and 5, are thin-walled blood vessels in which gas exchange occurs. In the capillary, the wall is only one cell layer thick. Capillaries are concentrated into capillary beds.
capillaries
The Southwest Environmental Health Sciences Center
The Biology Project
The University of Arizona
Tuesday, October 14, 1997
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The capillaries drain into two coronary veins that empty into the right atrium.
Arteriosclerosis ...
The capillaries which are fed by arteries and drained by veins, penetrate to within one or a few cells of every cell in the body.
Arteries, Capillaries, And Veins
Your arteries carry blood from your heart, out to the rest of your body. They have very thick walls, which allow them to withstand the immense pressure created as your heart pumps blood forcefully.
peritubular capillaries
[Gk. peri, around + L. tubus, tube]
In the vertebrate kidney, the capillaries that surround the renal tubule; ...
ball-like mass of capillaries at the enlarged end of a kidney tubule of higher vertebrates (malpighian body)
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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Gel-filled silica capillaries used to separate fragments for DNA sequencing.
If you think of a red blood cell going through your veins and arteries and capillaries as a water balloon, ...
The instrument uses a CCD detector to simultaneously record fluorescence signal from all 96 capillaries with on-column laser excitation. Multi-wavelength detection is implemented with a miniaturized spectrometer utilizing a transmission grating.
As blood is pumped from the heart, it passes through a system of arteries, arterioles, and then capillaries. The capillaries are the vessels that allow for most of the transfer of compounds and dissolved gases.
They send out a series of factors, diffusible proteins that seduce capillaries to grow from the normal circulation into the tumor mass thereby supplying cells in the tumor mass with their much needed nutrients and oxygen.
The renal arteries branch quickly into very small capillaries that make up the glomerulus of the nephron. The blood pressure within the capillaries squeezes liquid into the Bowman's capsule. This process is known as ultra-filtration.
Every tissue in the body is loaded with capillaries, small blood vessels slightly larger than red blood cells. Coursing through the capillaries you find blood plasma transporting nutrients to the tissue and removing waste.
glomerulus A tuft of capillaries projecting into a renal corpuscle in a kidney. Also, a small spongy mass of tissue in the proboscis of hemichordates, presumed to have an excretory function.
Rete mirabile. A countercurrent exchange structure of capillaries that allows gas uptake in a fish swim bladder ...
Small, elastic blood vessel that arises from arteries and leads into capillaries.
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Bohr effect: When blood pH decreases, the ability of hemoglobin to bind to oxygen decreases. An adaptation to release oxygen in the oxygen starved tissues in capillaries where respiratory carbon dioxide lowers blood pH.
cytotrophoblast - inner cellular layer of the trophectoderm (trophoblast), between the syncitiotrophoblast, and chorionic villus capillaries; part of the mammalian placenta.
(Science: radiology) Cyanotic congenital heart disease, e.g., tetralogy of fallot, most important predisposing factor, blood not filtered by pulmonary capillaries ...
 See also: Cells, Blood, Trans, Human, Organ
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