Aortic valve prevents backflow of blood into the left ventricle and creates the second, dubb sound.
The mitral, tricuspid, pulmonary, and aortic valves are the four heart valves that keep blood flowing in the right direction. Flaps (leaflets) on each valve open and close once per heartbeat.
The mitral and tricuspid valves transport blood from the upper chambers of the heart (the atria) to the lower chambers of the heart (the ventricles). The aortic and pulmonary valves transport blood to the lungs and the rest of the body via the ventricles.
Blood flowing through the heart chambers creates heart sounds as the cardiac valves open and close during the cardiac cycle. The vibrations of these structures caused by blood flow produce audible sounds.
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Tantalum.................
The answer is false. A bolus is the organization of a discrete measure of pharmaceutical, medication or another compound keeping in mind the end goal to bring its focus up in blood to a compelling level. The organization can be given by infusion: intravenously, intramuscularly, intrathecally, subcutaneously, and by inward breath. The article on courses of organization gives more data, as the first rundown of ROIs is not comprehensive.
Answer:
when refering to growth the cells get bigger rather than multiplying, when talking about development, the cells multiply rather than enlarge
Explanation:
I think the diameter of it is 0.03
