Advertisements
Advertisements
प्रश्न
Give reason for the following:
Only the veins and not the arteries are provided with valves.
Advertisements
उत्तर
Veins carry the blood from the body part towards the heart while the arteries carry the blood
from the heart. Veins carry the blood against the force of gravity. Therefore, only the veins
and not the arteries are provided with valves.
संबंधित प्रश्न
Name the following:
The blood vessel which supplies blood to the liver.
Which organ acts as a pump in the circulatory system?
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
What does the term “double circulation” mean?
Give reason for the following:
Atrial wall is less muscular than the ventricular wall.
True or false:
The four blood groups in human beings are A, B, AB and AO
The process of keeping the blood flowing continuously throughout the body.
______ is a granulocyte.
In which of the following process blood neutrophils play an important role?
______ refers to a marked decrease in the number of platelets.
