Blood vessels are of three types: arteries, capillaries, and veins. Arteries transport blood away from the heart. They have think walls composed of an inner endothelium layer (tunica internal), an outer connective tissue layer (tunica external), and also a thick middle layer (tunica media) of...
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
Capillaries are tiny blood vessels that connect the arterial and venous sides of circulation23. The walls of these vessels are only one-cell thick to allow for easy exchange of substances in the tissues. Oxygen is transported out of the capillaries into the tissues; carbon dioxide flows in the...
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 ...
相关知识点: 试题来源: 解析 B。解析:“When we are hot, blood vessels near the skin dilate, allowing more blood to flow near the surface and release heat.”,当我们热的时候,皮肤附近的血管会扩张,让更多的血液流向表面并释放热量。反馈 收藏 ...
结果一 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 ...
题目 ( )5.What is the total length of all the blood vessels in human body? A.10 km B.1,000 km C.10,000 km D.100,000 km 答案 优质解答相关推荐 1( )5.What is the total length of all the blood vessels in human body? A.10 km B.1,000 km C.10,000 km D.100,000 km 反...
Blood is a fluid that is in a state of circulation throughout our body. Blood is considered a fluid connective tissue in the body, as it connects our different body parts. It is a major part of our circulatory system, working closely with the heart and blood vessels....
Blood vessels are crucial for circulating oxygen and nutrients. 6 Vein A type of blood vessel that carries blood back to the heart. The veins in your legs work against gravity to return blood to the heart. 6 Vessel Varies in structure based on function. The elasticity of arterial vessels he...
B. Medium-size arteries C. Small arteries D.Arterioles 点击查看答案&解析 你可能感兴趣的试题 单项选择题 中国特色社会主义最本质的特征是中国共产党领导,中国特色社会主义制度的最大优势是中国共产党领导,党是最高政治领导力量。 A. 对 B. 错 点击查看答案&解析 ...