i) Arteries. They carry blood away from the heart to various organs of the body. ii) Veins : They collect the blood from different organ and bring it back to the heart. iii) Capillaries : Exchanges of material between the blood and surrounding cells
life style and this has led to new kinds of sicknesses.These new sicknesses were not known in ancient times.So they are called “diseases of civilization (文明)”.Many cancers and diseases of the blood system including heart attacks (心脏病)and strokes(中风)are examples of such diseases. ...
Recently some American scientists have given a useful sincere piece of advice to people in industrialized nations that they would be much healthier if they ate more of the same kind of food eaten by humans living more than 10 000 years ago. The scientists say that the human body has changed...
【题文】Scientists have discovered thirteen kinds of vitamins. They say vitamins help to carry out chemical changes within cells. If we do not get enough of the vitamins we need in our food, we are at risk of developing a number of diseases. Which foods should be eaten to keep us health...
Too much noise can cause high blood pressure as well. Working for a long time in strong, changeable light may cause some kinds of diseases. It makes people feel terrible and is especially bad for the eyes. With less pollution, our earth will become greener and our health will be better...
He has coughed up blood. His nose stuffed up when he had a cold. His nose doesnt work when he has a cold. He coughs up a lot of phlegm (thick spit) on most days. He coughs up a lot of phlegm. He has a feeling of tightness in the chest or a feeling that He is suffocating....
miRNA心力衰竭水肿协会类型β受体阻滞剂RNAsBackground Although mi RNAs have been shown to associate with a variety of diseases,whether mi RNAs in monocyte associate heart failure(HF) has been not well studied.Methods Eight patients with ischemic HF(IHF),8 patients with non-ischemic HF(NIHF) and ...
Kinds Of Anemia Diseases Anemia is a disease the body lacks enough red blood cells supply sufficient oxygen to the body. Knowing the signs and symptoms of anemia is very good in order to […] Kinds Of Breast Tumors Cancer that starts in the tissues of the breast is known as breast cancer...
∴A During hot summer, all the people are really tired of two kinds of insects, flies and mosquitoes, especially mosquitoes.As we all know, mosquitoes suck the blood of people. When people are bitten by the mosquitoes, many kinds of illnesses can be spread, such as malari a and dengue ...
The fact that certain blood types are more vulnerable to particular kinds of diseases proven, but there has never been any credible research that links blood types to certain personality traits.相关知识点: 试题来源: 解析 Research has shown that having certain blood types increases susceptibility to...