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प्रश्न
Name the organ from which oxygenated blood goes into the heart
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उत्तर
Lungs
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संबंधित प्रश्न
The diagram given below represents the human heart in one phase of its functions. Study the diagram carefully and answer the questions that follow:

- Name the phase.
- Which part of the heart is contracting in this phase? Give a reason to support your answer.
- Name the parts labelled 1 to 4.
- What type of blood flows through 2?
- State the function of the part numbered ‘5’.
- Name the membrane that covers the heart.
The table below is designed to indicate the transport of certain substance in our body. Fill in the
blanks with suitable answers.
| Substance | From | To |
| Lungs | Whole body | |
| Carbon dioxide | ||
| Urea | ||
| Digested carbohydrates |
Intestines | |
| Target organs |
Given below is a highly schematic diagram of the human blood circulatory system.
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- Which part (state the number) represents the heart? Give reason in support of your answer.
- Which numbers represent the following, respectively?
Aorta Superior vena cava Hepatic portal vein Renal Vein Pulmonary artery Stomach
What is haemoglobin? State the consequences of deficiency of haemoglobin in our bodies.
Cardiac muscles are ______.
Given alongside is a diagram of human heart showing its internal structures. Label the parts marked 1 to 6, and answer the following questions.

- Which types of blood is carried by the blood vessel marked 2?
- Name the main artery which takes the blood from heart to different parts of the body?
- Which chamber of the heart receives deoxygenated blood from the body?
- Which chamber of the heart receives oxygenated blood from the lungs?
True or false:
Impure blood is received by the right auricle.
Choose the correct alternative.
What is the minimum number of the plasma membrane that oxygen has to diffuse across to pass from air in the alveolus to haemoglobin inside a RBC?
Why do we call saliva a digestive juice?
Ventricles have ______ walls when compared with those of auricles.

