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प्रश्न
Give scientific reason.
Left ventricle is thick than all other chambers of heart.
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उत्तर
i. The thickness of the myocardium of the four chambers varies according to the functions of each chamber.
ii. The thin-walled atria deliver blood into adjacent respective ventricles.
iii. As compared to the right ventricle, the left ventricle pumps blood at great distances to all other parts of the body at higher pressure, and resistance to blood flow is larger. Therefore, the left ventricle is thick as it requires strength to withstand the high pressure.
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संबंधित प्रश्न
Normal activities of the heart are regulated by ______________.
Sketch and label the ventral view of the human heart.
Name the following:
The inflammation of pericardium.
Given alongside is a diagram of the external features of the heart.
(i) Name the parts ‘1’ to ‘7’.
(ii) What happens if the coronary artery gets an internal clot?
(iii) Which type of blood does part ‘5’ carry?
(iv) Mention one structural difference between part ‘5’ and ‘4’.
Choose the Odd One Out:
For which of the following reason the left ventricle of human heart has its wall thicker than the right ventricle?
The blood does not flow back into the ______ when mitral valve closes.
How many times per healthy man beats?
Left atrium : pulmonary vein : right ventricle : ____________.
Draw the neat Labelled diagram of the internal structure of the human heart.
