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प्रश्न
Angina pectoris is due to
विकल्प
defective nutrition
chest pain due to inadequate supply of oxygen to the heart muscle
defective functioning of mitral valve
infection by a virus
उत्तर
chest pain due to inadequate supply of oxygen to the heart muscle
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संबंधित प्रश्न
fill in the blanks with suitable functions: Eustachian Tube and ______
Why is it necessary to know the blood groups before giving transfusion?
The valve which prevents back flow of blood in the veins and lymph vessels ______.
Explain the structure and function of human blood.
Put a tick mark (✓) against the correct alternative in the following statement.
Pulmonary vein carries
You can see some blood vessels on the outside of the hands specially in older people. Are those veins or arteries? How can you confirm your answer?
Fill in the blank:
The blood vessels which carry blood from the heart to different parts of the body are called ______.
Explain the Term
Hepatic Portal System
The process of keeping the blood flowing continuously throughout the body.
Given diagram is a schematic representation of the circulatory system in humans. Study the same and answer the questions that follow:
 |
- 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.
