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 wa
Tiny black dots that look like seeds (actually dried
blood from
tiny blood vessels) may appear on the surface of wa
tiny 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.