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प्रश्न
Angina pectoris is due to
पर्याय
defective nutrition
chest pain due to inadequate supply of oxygen to the heart muscle
defective functioning of mitral valve
infection by a virus
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उत्तर
chest pain due to inadequate supply of oxygen to the heart muscle
संबंधित प्रश्न
The exact location of the tricuspid valve
What is the function of spleen?
Give reason for the following:
The walls of the left ventricle are thicker than the walls of all other chambers.
Give reason for the following:
The blood groups of both the donor and recipient must be known before transfusing blood.
Explain the following:
Why is the closed circulatory system more efficient than the open system?
Draw the structure of human heart and label its parts
Explain the main parts of the circulatory system.
Reduction in number of ______ can cause clotting disorder, leading to excessive loss of blood from the body.
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?
Given diagram is a schematic representation of the circulatory system in humans. Study the same and answer the questions that follow:
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- Label the parts 1 and 4 indicated in the diagram.
- Which of the above mentioned number is the thickest artery? Also write its name.
- Mention the number and chamber of the heart which has the thickest muscular wall.
- Which of the above numbers/structures has the maximum number of blood capillaries?
- Draw neat and labelled diagrams of the transverse section of vena cava and the part numbered as 3. Make sure to show the structural differences between these two in the diagram.
