(a) What causes the first heart sound ("lub")? (b) What causes the second heart sound ("dub")? The Heart: The heart is a vital organ found in the centre of the thorax and is part of the circulatory system. The function of the heart is to receive blood and ...
The first heart sound (S1) occurs at the start of the ventricular systole, and it is produced by the vibration given by the sudden closing of the AV valves, known asmitral and tricuspid, at the beginning of the ventricular systole. The first heart sound is soft, long, and low-pitched. ...
NYC and Nashville) first come to mind, a quieter stay in Santa Barbara or Seattle could fit the bill for the relaxation-minded. The bride who wants to get the aesthetic just right, on the other hand, will direct
Thump. Thump. That is the sound of your heart beating. What an amazing organ works all day. It works all night. Your heart pumps (输送) blood (血液) to all the parts of your body. It pumps head, your fingers and your f 25 . And it weighs o 26 about half a kilogram. But it'...
It can can grow more than 60-feet tall and produces impressive fruit that can grow nearly 2-feet long and weigh as much as 15 lbs. These long sausage-like fruit give the tree its distinctive name. And while you might already see this as a potential horror-movie plant (it has a very...
Person Icon:Means you are tagged in the post. Loudspeaker Icon:Shows whether the post is muted or not. If you see a bar on the Loudspeaker, it means that you will not hear the sound of the video. Icons Below the Post Heart symbol:This is the usual Like button. Tapping it will make...
Wide splitting of the second heart sound and systolic murmur: not what you think131718Department of Cardiothoracic Surgery, Hadassah University Hospital, Jerusalem, Israel. eamir@md.huji.ac.ildoi:10.1016/j.jtcvs.2006.08.056Amir ElamiMosby, Inc....
Directions: Suppose the university newspaper is inviting submissions from the students for its coming edition on a campus event that has impressed them most. You are now to write an essay for submission. You will have 30 minutes to write the essay. You should write at least 120 words but no...
My kiss is like the smoke from my heart a flame! 爱就是笼罩在晨雾中一颗星。 没有你, 天堂也变成地狱。 可爱的战溧,微妙的颤抖, 这……羞怯温柔的拥抱—— 在你美丽的樱唇上, 我惯用接吻来代替语言, 我的吻就像是从我的心底冒出的一个火焰! Yesterday kissed my happiness, today has come to naug...
Seizures are caused by brain diseases, tumors, genetic conditions, or other illnesses or disorders. First aid tips for what to do when a person has a seizure include loosening the clothing around the neck, removing sharp objects around the person, laying