Sentences with phrase «of tiny blood vessels»

Human skin has many sweat glands in it, and beneath the surface of the skin is a vast network of tiny blood vessels called capillaries.
Particularly organs that contain lots of tiny blood vessels, such as the brain, can be heavily impacted.
Also, one of the other changeable factors he talks about in the book is capillary density in the muscles... basically the number and density of the tiny blood vessels where oxygen and nutrient exchange take place.
Alpha lipoic acid is one of the few aubstances that can pass the blood - brain barrier, a wall of tiny blood vessels.
Sinus blockage triggered by a food or seasonal allergy can cause swelling of the tiny blood vessels near the surface of the skin — and, voila, «darkened» areas around your nose and eyes.
For example, the structural integrity of tiny blood vessels, the physical limits of synthetic tubing, the complex molecular exchange between fetus and placenta, and the often - poor outcomes of premature infants (despite receiving today's most cutting - edge interventions) all speak to the immeasurably complex science attending fetal viability outside the human womb.
He has watched the inflammation - producing proteins ADAM17 sets free into the bloodstream make a beeline for the heart, where they thicken and stiffen the walls of the tiny blood vessels that help feed the important muscle.
In an NIH - funded study, scientists were able to direct human stem cells to form networks of tiny blood vessels that can connect to the existing circulation in mice.
One of the main obstacles to such tissue engineering has been producing the network of tiny blood vessels that keep newly growing natural tissue alive.
The inner nose is full of tiny blood vessels and is one of the most sensitive parts of the body.
First, they 3 - D - printed wormlike strands of a gel called agarose, each serving as a cast of a tiny blood vessel.
As you drink and force your body to metabolize alcohol, you're converting ethanol into acetaldehyde and acetate in your liver, and this causes increased production of tiny blood vessel constrictors called thromboxanes.

Not exact matches

If you could see into your womb, you would be able to see your baby's tiny veins, because the network of blood vessels that run underneath the skin can be seen easily, in addition to bones.
This can, however, disrupt the tiny blood vessels leading to loss of your nipple later on.
The H5N1 strain causes tiny blood vessels throughout the body of a chicken, for example, to collapse.
«You've got narrow vessels with thickening fluid trying to get through them,» which in effect creates a network of tiny blood clots, Cochran says.
Based on the pioneering work of Dr. Claire Lugassy and Dr. Raymond Barnhill at UCLA's Jonsson Comprehensive Cancer Center, a new study provides additional support for a process by which melanoma cells, a deadly form of skin cancer, can spread throughout the body by creeping like tiny spiders along the outside of blood vessels without ever entering the blood stream, and that this process is exacerbated by exposure to ultraviolet (UV) light.
«Our tests indicate we can operate on tiny structures such as blood vessels without damaging them,» said Thomas Looi, the project director for one of the partners that developed KidsArm at the Hospital for Sick Children (SickKids) Centre for Image - Guided Innovation & Therapeutic Intervention (CIGITI) in Toronto, Canada.
When young and tiny, a malignancy nestles inside a bed of blood vessels that keep it fed.
After analyzing the videos, they found that, as the animal dipped its tongue in and out of the flower, tiny blood vessels on the hairs of its tongue became engorged with blood, prompting the hairs to stand straight up and drag even more nectar up from the flower.
Instead of dilating and increasing blood flow to the heart during stress, in women the tiny blood vessels are constricted, leading to areas of reduced blood flow,» said Vaccarino, who is also chair of the department of epidemiology at the Emory University School of Public Health.
Early in pregnancy, these trophoblasts invade the uterine wall and later develop a complex network of tiny projections called villi, which contain fetal blood vessels.
The Canada - Taiwan research team, led by Reisz, used the synchrotron at the Taiwanese National Synchrotron Radiation Research Centre to find the substance in place, known as collagen type I, preserved within the tiny vascular canals of the rib where blood vessels and blood would be in the living dinosaur.
During PAE, an interventional radiologist makes a tiny incision in either the groin or wrist to insert a catheter (a small tube about the size of a strand of spaghetti) into an artery and, using image guidance, directs the catheter to the blood vessels on both sides of the enlarged prostate gland.
The dendrimer, an extremely tiny nanoparticle, takes advantage of certain physical characteristics that blood vessels leading to cancer cells have, but healthy ones do not.
Cambridge, Mass. — February 19, 2014 — A new bioprinting method developed at the Harvard School of Engineering and Applied Sciences (SEAS) and the Wyss Institute for Biologically Inspired Engineering at Harvard University creates intricately patterned, three - dimensional tissue constructs with multiple types of cells and tiny blood vessels.
Nature gets around this problem by permeating tissue with a network of tiny, thin - walled blood vessels that nourish the tissue and remove waste, so Kolesky and Lewis set out to mimic this key function.
For example, he explains, smooth muscle cells grow thicker in large blood vessels like arteries, but similar type of contractile cells begin to die off in tiny blood vessels in the eye.
A new, largely 3D - printed device allows surgeons to practise suturing tiny 3D printed «blood vessels, nerves, ligaments and tendons» to increase their skill and speed and test the quality of suturing lines.
Shaped like a tiny doughnut with a depression instead of a hole in the center, each cell rushes through the widest blood vessels and squeezes through the slimmest vessels, known as capillaries.
Researchers have already managed to make wider blood vessels from scratch, but the formation of the tiny diameter capillaries needed to create a blood supply within other tissues and organs is far more challenging.
In a new study, scientists led by Selvi C. Jeyaraj of the Research Institute at Nationwide Children's Hospital have identified a biological mechanism that may be responsible for icy extremities: an interaction between a series of molecules and receptors on smooth muscle cells that line the skin's tiny blood vessels.
«There's always a tiny risk of some bruising at the site of the IV insertion, or at worst, a hematoma [a collection of blood outside a blood vessel] if the IV line infiltrates the vein.
Tiny black dots that look like seeds (actually dried blood from tiny blood vessels) may appear on the surface of waTiny black dots that look like seeds (actually dried blood from tiny blood vessels) may appear on the surface of watiny blood vessels) may appear on the surface of warts.
• Kidney failure • Peripheral vascular disease, hardening and narrowing of the arteries (atherosclerosis) that supply blood to the arms, legs, and other parts of the body • Retinopathy, or damage to the tiny blood vessels that supply blood to the light - sensitive lining of the back of the eye • Stroke
In both cases, the B vitamins may work by protecting tiny blood vessels in the retina of the eye and the inner ear.
The transport of interstitial fluid, which fills the spaces between cells, and maintaining its balance with circulatory fluids is another function of the lymphatic system.Tiny amounts of plasma migrate through the tiny blood vessels known as capillaries and into the spaces between cells.
Horse Chestnut reduces inflammation and tones up vein walls, plugs up minute holes and microscopic leaks in the tiniest blood vessels, reforces the strength of veins which promotes elasticity and prevents swelling and improves overall circulation.
These tiny clusters of blood vessels near the surface of the skin usually appear on the face and / or legs.
-LSB-...] work by protecting tiny blood vessels in the retina of the eye and the inner ear.
These cells live in the tiny blood vessels in the cat's lungs and fight to get rid of intruders, but the cat becomes ill as these cells try to kill off the larvae.
Despite their small size, they suck large amounts of blood from the tiny vessels in the intestinal wall.
Tiny acupuncture needles are inserted into the skin where nerve bundles and blood vessels are located — called acupuncture or energy points — to improve blood circulation, oxygen flow, nerve stimulation, and the release of hormones that help relieve inflammation and pain.
The advantage of this (vs. regular scalpel) is that, as the radio frequency cuts, it also cauterizes back tiny blood vessels and nerves.
Tiny blood vessels in the inner lining of the eye burst, causing the retina to detach.
And thousands of blood vessels, from the large and powerful aorta to the tiniest capillaries, serve as the conduits for blood as it travels throughout the body.
The scratching or shaking of the ear ruptuers the tiny blood vessels in the ear's cartilage causing them to bleed under the skin of the earflap forming a pocket of blood.
Despite their small size, they suck large amounts of blood from tiny vessels in the intestinal wall.
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