Heart Pumping Organ
Heart Pumping Organ
Human heart is a muscular, cone shaped , hollow dark red colour organ about the size of fist .It plays the role of pump in the circulatory system. Heart is situated behind the sternum, between the lungs in the thoracic cavity. The heart is slightly tilted towards the left. In man heart weighs 0.43 % of the body weight .
The heart is covered in the tough inflexible membrane called as pericardium. Between heart and the pericardium their is present pericardial fluid which help to reduce friction between the heart wall and surrounding tissue. The heart is made up of special types of muscles called as myocardium. The inner lining of heart is called as endothecium.
Internal Structure of Human Heart :
Heart consists of different types of vessels like :-
Working of Heart :-
How many chambers does the heart have _________________ . | |||
| Right Option : B | |||
| View Explanation | |||
How many chambers are present in the human heart? | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) Heart is the pumping organ of our respiratory system. (b) The heart is located, slightly towards the left, in the chest. It is a muscular organ roughly of the size of the closed fist of the person. (c) The heart is divided into two equal halves - left half and right half. Each half is further divided into two chambers which have a common opening between them. There are, thus, four chambers in all.
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| Right Option : B | |||
| View Explanation | |||
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8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
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