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Biology : Human Circulatory System I


Given the QUESTION, identify the ANSWER

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Multiple choice

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1.

Due to presence of _______ , back flow of blood is prevented in veins.

  Arteries

  Thick walls

  Septa

  Valves

  Half-n-half Clue
 

2.

Very fine vessels called capillaries connect arteries and veins to each other.

  True

  False

 

3.

This statement is not true :

  Veins return blood from the various parts of the body to the heart.

  Veins are thin-walled.

  All veins carry deoxygenated blood.

  Veins contain valves.

 
Hint      

4.

This statement is not true regarding hemoglobin :

  Hemoglobin carries oxygen.

   Hemoglobin deficiency leads to anemia.

  Percentage of hemoglobin in a healthy young man is 10/12 gm%.

   Hemoglobin is found in RBCs.

  Half-n-half Clue
 

5.

Identify the blood vessel 'A' in this diagram.
 heart

  Pulmonary artery

  Inferior vena cava

  Aorta

  Carotid artery

  Half-n-half Clue
 

6.

This statement is true regarding platelets :

  Platelets contain many nuclei.

  Platelets contain single nucleus.

  Platelets contain an ill-defined nucleus.

  Platelets do not contain nucleus.

 
Hint      

7.

Deficiency of hemoglobin is known as anemia.

  True

  False

 


 
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