Advertisements
Advertisements
प्रश्न
Why does the left ventricle possess a thicker wall than the right ventricle?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Describe the function of the heart.
The diagram given below represents a section of the human heart. Answer the questions that follow:
- Which parts of heart are in the diastolic phase? Give a reason to support your answer.
- Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
- What causes the heart sounds ‘LUBB’ and ‘DUP’?
- Name the blood vessels that supply oxygenated blood to the heart muscles.
- Draw neat labelled diagrams of a cross section of an artery and a vein.
Give technical terms for The protective covering of the heart
State the functions of blood in our body.
In what ways does the blood entering the kidney differ from that leaving the kidney?
Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
Which of the following is a major part of the plasma?
Given below are four statements regarding human blood circulatory system:-
- Arteries are thick walled and have narrow lumen as compared to veins.
- Angina is acute chest pain when the blood circulation to the brain is reduced.
- Persons with blood group AB can donate blood to any person with any blood group under ABO system.
- Calcium ions play a very important role in blood clotting.
Which two of the above statements are correct?
 |
Can you answer why the pulmonary artery shown in Fig. is blue in colour?
