5. What types of blood vessels are in the body?Discuss their structure and function.Blood vessels are of three types: arteries, capillaries,and veins.Arteries transport blood away from the heart. Theyhave think walls composed of an inner endothelium layer(tunica internal), an outer connective ti...
题目 7.What is the function of the blood vessels in a human body? (3)(1) Pump blood to the heart.(2) Remove impurities from the heart.(3) Carry blood to all parts of the body.(4) Send messages from the brain to the muscles 相关知识点: 试题来源: 解析 (3) 反馈 收藏 ...
题目 what system of the human body is made up of blood,blood vessels or the heart 翻译并回答 答案 翻译:什么系统是由人体血液、血管、心脏 回答:血液循环系统 相关推荐 1 what system of the human body is made up of blood,blood vessels or the heart 翻译并回答 反馈 收藏 ...
"Because new blood vessels frequently form in tissues with a poor blood supply,endothelial cellsmust be able to grow in the most challenging metabolic conditions," says Potente. "That's why it's so important for these cells to have molecular machinery that recognizes and reacts to subtle chang...
But if you have diabetes, your body doesn’t make insulin (type 1 diabetes) or doesn’t respond to it normally (type 2 diabetes). That can leave your blood sugar too high for too long. Over time, this can damage nerves and blood vessels and lead to heart disease and other problems....
Vaginal bleeding after sex can be scary if you'repregnant, but it probably isn't a cause for concern. Your cervix may bleed more easily during pregnancy because extra blood vessels are developing in the area. That can cause bleeding, especially after sex. ...
百度试题 结果1 题目What are the only vessels that branch from the ascending aorta providing blood to the heart? A. Coronary arteries B. Aorta C. Veins D. Capillaries 相关知识点: 试题来源: 解析 A 反馈 收藏
Veins, in their capacity to return blood to the heart, are equipped with a series of one-way valves that ensure blood flows in the correct direction, countering the force of gravity, especially in the legs. 13 While all vessels are essential components of the circulatory system, veins have ...
Blood blisters are a type of blister filled with blood rather than the clear fluid commonly associated with blisters. They are caused by a rupture of the blood vessels underneath the skin’s surface, usually cause by some form of trauma, such as pinching. Like all forms of blisters, blood ...
One reason is that our blood vessels gradually become stiffer and lose the elasticity needed to shift back and forth.2 Stopping damage Blood’s self-repairing function, called clotting, helps stop bleeding. Certain proteins in the blood help turn “on” and “off” the clotting system as n...