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प्रश्न
Mention the phase of heart beat in which both the atrio-ventricular valves are closed.
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उत्तर
Ventricular systole.
संबंधित प्रश्न
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 type 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?
Why is it necessary to know the blood groups before giving transfusion?
Multiple choice questions. Tick ( ✓ ) the correct choice:
The four blood groups in humans are
Name the main artery which carries blood to different parts of the body.
Why do we call saliva a digestive juice?
The lymphatic system consists of which of the following?
Identify the INCORRECT match
Which of the following is TRUE regarding closed circulatory system?
Spleen is referred to as ______.
Assertion (A): RBCs help in the transport of respiratory gases.
Reason (R): The cytoplasm of RBCs contains the respiratory pigment Haemoglobin.
