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प्रश्न
Why does the left ventricle possess a thicker wall than the right ventricle?
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उत्तर
The left ventricle possess a thicker wall than the right ventricle because it pumps the blood at a higher pressure since blood from the left ventricle goes to all areas of the body while the right ventricle only has to pump blood to the lungs which is a much shorter distance, therefore less pressure is required.
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संबंधित प्रश्न
The diagram given below represents a section of the human heart. Answer the questions that follow :
(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds ‘LUBB’ and ‘DUP’?
(iv) Name the blood vessels that supply oxygenated blood to the heart muscles.
(v) Draw neat labelled diagrams of a cross section of an artery and a vein.
Differentiate between LUBB and DUP (names of the valves whose closure produce the sound)
What are the average values of blood pressure in a normal adult human?
Given below is a certain structure, write its chief functional activity.
Bone marrow - ______.
Explain the difference.
Arteries and veins.
True or false:
The four blood groups in human beings are A, B, AB and AO
Name the main artery which carries blood to different parts of the body.
Complete the following sentence with appropriate word:
The membranous covering of the heart is _______.
Long answer question:
Describe human blood and give its functions.
Which of the following health condition refers to the type of blood cancer in which uncontrolled increase in number of WBCs occurs?
