Advertisements
Advertisements
प्रश्न
Veins have valves at intervals in their inner lining whereas the arteries do not have valves. Explain.
Advertisements
उत्तर
In arteries blood flows with pressure but in veins the pressure falls considerably and the back flow of blood is prevented by the semilunar valves.
APPEARS IN
संबंधित प्रश्न
Describe the function of the heart.
The exact location of the tricuspid valve
Fill in the blanks with suitable words given below:
The ______ artery takes the blood from the ventricles to the lungs.
In which organ of our body does blood get oxygenated?
True or false:
The four blood groups in human beings are A, B, AB and AO
True or false:
People with blood group ‘O’ are called universal recipients
True or false:
Blood group A has antigen A.
Describe, in brief, the circulatory system in human beings.
Thin tube-like structures which are the component of circulatory system are called blood vessels.
______ prevent blood clotting.
