Advertisements
Advertisements
प्रश्न
What does the term “double circulation” mean?
Advertisements
उत्तर
Blood flows twice in the heart before it completes one full round. The full round thus includes
pulmonary and systemic circulation. In pulmonary circulation, blood enters the lungs through
pulmonary arteries. Pulmonary veins collect the blood from the lungs and carry it back to the
left atrium.
In systemic circulation, blood from the left ventricle enters the aorta through which the blood is
sent to the body parts. From the body parts blood is collected by veins and sent back to the heart.
Therefore, the blood circulation in the human body is called double circulation.
संबंधित प्रश्न
Describe, in brief, the circulatory system in human beings.
Given below is certain structure, write the term for the functional activity.
Erythrocytes and …………………………………
Name the following:
The phase of the cardiac cycle in which the auricles contract.
Name the following:
The fluid found between the membranes of the heart.
Give reason for the following:
Atrial wall is less muscular than the ventricular wall.
Fill in the blanks with suitable words given below:
The carbon dioxide loaded blood from right ventricle is pumped into the lungs through ______.
Veins have valves at intervals in their inner lining whereas the arteries do not have valves. Explain.
State the Location: Bundle of His
Name the following:
Contraction phase of heart.
Mention the phase of heart beat in which both the atrio-ventricular valves are closed.
