Heart Pumping Organ


Life Process Transportation - Concepts
Class - 6th CBSE Subjects
 
 
Concept Explanation
 

Heart Pumping Organ

The blood, circulating in the body, keeps or carrying fresh nourishment and bringing back waste products. All this gets done by a system of Organs which constitute the circulatory system. The circulatory system consists of the organs like Heart and blood vessels.

Heart:

  • Heart is the pumping organ of our circulatory system. 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.
  • 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.
  • The upper two chambers are called auricles, or atriums and the lower two chambers are called ventricles. The left auricle (atrium), and left ventricle, contain oxygen rich blood. The right auricle (atrium), and the right ventricle, contain blood having carbon dioxide in it.
  •  The main function of the heart is to pump blood and keep it moving in the blood vessels.
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    Sample Questions
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    Question : 1

    How many chambers does the heart have _________________ .

    Right Option : B
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    Explanation
    Question : 2

    Which of the following are correct  about heart?

    (a) The upper two chambers are called auricles, or atrium and the lower two chambers are called ventricles. The left auricle (atrium), and left ventricle, contain oxygen rich blood.

    (b) The right auricle (atrium), and the right ventricle, contain blood having carbon dioxide in it.

    (c) The main function of the heart is to pump blood and keep it moving in the blood vessels.

    Right Option : D
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    Explanation
    Question : 3

    How many chambers are present in the human heart?

    Right Option : D
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    Explanation
     
     
     


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