The female mosquito uses its thin sucking tube to break the skin, find blood and inject the victim with a substance that keeps blood flowing.
VOA: special.2009.05.26
It thickens the blood around a cut to stop bleeding.
VOA: special.2010.09.14
Baghdad TV showed pools of blood and chunks of cinderblock from the explosion of a bomb in the Kurdish village of Sinjar,near Mosul.
VOA: standard.2009.08.29
That means they take a drop of blood and they look at it under a microscope, and they can confirm that this was an actual case of malaria.
VOA: standard.2010.06.17
There are two kinds of strokes. An ischemic stroke happens when a blood vessel in the brain gets blocked.
VOA: special.2009.09.22
"First off,there is the infectious disease risk because if you use human blood there's a lot of transmissible diseases.
VOA: special.2009.08.03
There is a risk that giving a patient a strong blood thinner during a stroke can cause bleeding inside the brain.
VOA: special.2009.09.22
For example, a murderer might have blood or dirt on his or her hands which leaves prints on the wall.
VOA: special.2010.05.05
Last Friday he suffered a torn aorta, a large artery that carries blood from the heart to the body.
VOA: special.2010.12.18
Clots can block the flow of blood to the heart or brain and cause a heart attack or stroke.
VOA: special.2009.10.20
The World Health Organization says passengers who sit still for four or more hours face a greater risk of developing blood clots.
VOA: special.2009.07.14
They may have a weak or damaged heart, high blood pressure or other problems of the blood system.
VOA: special.2010.07.27
He is a high blood pressure expert and professor at Albert Einstein College of Medicine in New York.
VOA: special.2010.03.03
But blood drops with long tails can tell a great deal about the direction, speed and angle of the blood's starting point.
VOA: special.2010.05.05
应用推荐