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प्रश्न
Why does the heart need valves?
उत्तर
The heart needs valves to regulate the flow of blood. It allows the blood to flow through the heart only in one direction.
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संबंधित प्रश्न
Fill in the blank with suitable word given below:
The carbon dioxide loaded blood from right ventricle is pumped into the lungs through _________ artery.
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 observed and taken in this process.
Fill in the blank.
The red-coloured pigment present in RBCs is called __________.
Write in brief about the following:
Blood transfusion.
The following simplified diagram refers to the outline plan of the circulation of blood in a mammal. Study the diagram and write the number and name of the blood vessel in each case as mentioned ahead.
Which vessel would contain the highest concentration of amino acids and glucose soon after a meal?
Name the Following
The blood vessel leaving the left ventricle of the mammalian heart
Name the Following
The blood vessels which have valves in them.
Complete the following sentence with appropriate word:
The blood vessel leaving the left ventricle of the mammalian heart is the _________.
Which type of blood flows through pulmonary veins?
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in
