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प्रश्न
What is meant by the term 'double circulation' of blood in mammals? What is diastole?
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उत्तर
Blood flows twice in the heart before it completes one full cycle. This process of blood circulation in the human body is called double circulation.
The expansion or relaxation phase of the atria is called a diastole.
संबंधित प्रश्न
What is the liquid part of the blood called?
What is meant by human circulatory system?
Heart sounds are produced due to ______.
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closure of tricuspid and bicuspid valves
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rushing of blood through valves producing turbulence
-
closure of atrioventricular and semilunar valves
-
entry of blood into auricles
Given below is a certain structure, write its chief functional activity.
Bone marrow - ______.
During surgical operations or during accidents, the patient may be given blood from outside to save his life. What is the technical name of this process? Briefly explain the precautions to be taken in this process.
Name the main parts of the circulatory system.
Differentiate between:
Open circulatory system and Closed circulatory system.
Complete the following sentence with appropriate word:
The membranous covering of the heart is _______.
Agranulocytes are about ______ % of total WBCs.
Which of the following is a major part of the plasma?
