试题来源: 解析 【答案】A【核心短语/词汇】atleast至少【翻译】血液通过心脏至少一分钟运行两次。【解析】本题结合句意,这里考查不定冠词a,表示“一”,a minute一分钟。B.an不定冠词,后接元音音素开头的单词;C.the定冠词。故本题选A。 反馈 收藏
Trace the flow of blood from the heart to the kidney and then back to the heart. Trace the flow of blood from the heart to the tip of your nose and then back to the heart. Blood passes through the ___ before it enters the left ventricle. A) Vena cava B) Left atrium C)...
Through what route does deoxygenated blood leave the heart? What type of blood vessels carry blood away from the heart? What structure will blood flow through directly after leaving the inferior vena cava? A. Right atrium B. Left atrium C. Left ventricle D. Right ventricle ...
Blood is carried through the body via blood vessels. An artery is a blood vessel that carries blood away from the heart, where it branches into ever-smaller vessels. Eventually, the smallest arteries, vessels called arterioles, further branch into tiny capillaries, where nutrients and wastes are ...
The heart pumps blood through the arteries, capillaries and veins to provide oxygen and nutrients to every cell of the body. The blood also carries away waste products. The adult human body contains approximately 5 liters (5.3 quarts) of blood; it makes up 7 to 8 percent of a person's ...
Inflow of blood at arterial pressure and crossing the capillary bed to enter the peripheral veins is, of course, the normal source of blood from which venous flow arises. In the elevated limb this blood flows back to the heart by gravity, through undistended veins and independent of valves ...
To solve the question "Blood leaving liver and moving to the heart has usually high concentration of," we will analyze the options provided: bile, urea, glycogen, and amino acids. Here’s a step-by-step breakdown of the solution:1. Unde
Leeches breathe through the skin. The digestive system contains a crop, or pouch, in which food can be stored for several months. One to four pairs of eyes are located at the anterior end. Individuals arehermaphroditic; that is, functional reproductive organs of both sexes occur in the same...
Arteries.These begin with the aorta, the large artery leaving the heart. Arteries carry oxygen-rich blood away from the heart to all of the body's tissues. They branch several times, becoming smaller and smaller as they carry blood farther from the heart. ...
Blood leaves the heart via the a) left atrium. b) aorta. c) right atrium. d) right ventricle. e) valves. Blood leaving the left ventricle passes through A) Lungs B) Aorta C) Semilunar valve D)Vena cava Blood entering the ...