Advertisements
Advertisements
प्रश्न
Why is blood needed by all the parts of a body?
Advertisements
उत्तर १
- Blood carries oxygen, food, hormones and other essential substances to different parts of the body.
- It brings carbon dioxide and other excretory substances from different parts of the body and expels them with the help of the lungs and other excretory organs.
- It sends toxic and harmful substances formed in metabolism to the liver to make them harmless. Thus, all organs need blood.
उत्तर २
- Blood is needed by all the parts because it contains the digested food and oxygen in it.
- It supplies oxygen and digested food to various parts of the body to provide essential energy to them which helps the body to perform various functions.
APPEARS IN
संबंधित प्रश्न
the Biological/technical term for Blood vessels carrying blood to the left atrium.
Why is it necessary to know the blood groups before giving transfusion?
Name the following:
The blood vessels which start from capillaries and end in capillaries.
Name the following:
The fluid found between the membranes of the heart.
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
Differentiate between members of the following pairs with reference to the aspect asked
within bracket:
Erythrocytes and leucocytes (function)
Differentiate between members of the following pairs with reference to the aspect asked within bracket:
Artery and vein (direction of blood flow)
Name the Following
The blood plasma from which fibrinogen has been removed.
In a closed circulatory system, blood is completely enclosed within:
Given below are four statements regarding human blood circulatory system:-
- Arteries are thick walled and have narrow lumen as compared to veins.
- Angina is acute chest pain when the blood circulation to the brain is reduced.
- Persons with blood group AB can donate blood to any person with any blood group under ABO system.
- Calcium ions play a very important role in blood clotting.
Which two of the above statements are correct?
