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प्रश्न
What is meant by the term 'double circulation' of blood in mammals? What is diastole?
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.
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संबंधित प्रश्न
Explain with tile help of a chart, explain the compatibility of human blood groups.
Differentiate between members of the following pairs with reference to the aspect asked within bracket:
artery and vein (type of blood primarily flowing through)
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
Find the odd one out.
Differentiate between the following pair of terms: Vena Cava and Aorta
Blood consists of two parts - a liquid part and a cellular part. Name these parts and briefly write about them
True or false:
Impure blood is received by the right auricle.
Match the following.
| Group A | Group B |
| (1) Lungs | (a) Circulation |
| (2) Stomach | (b) Respiration |
| (3) Heart | (c) Co-ordination |
| (4) Brain | (d) Digestion |
Which of the following correctly represents the components of blood?
The heart is covered by ______.
