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प्रश्न
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
Which part of the heart is contracting in this phase? Give a reason to support your answer.
उत्तर
Ventricular muscles are contracting during this phase because the valves between the two ventricles and pulmonary artery and aorta are open while the atrio-ventricular valves are closed.
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संबंधित प्रश्न
Fill in the blank with suitable word given below:
The two lower chambers of the heart are called ___________.
Select the odd one in the following:
Artery, Vein, Capillary, Nerve.
Answer in only one sentence of the following question:
Mention the role of the pacemaker in human heart.
State the Function: Bicuspid valve
What is the importance of valves in the heart?
______ valve is present at the opening of coronary sinus
The inner surface of the ventricle is thrown into series of irregular muscular ridges called ______
The kidney is located in the thoracic cavity between the two lungs.
Write the exact location of the following:
Heart
Given below is a diagram of the external features of the human heart. Study the figure and answer the questions that follows:
 |
- Label the guidelines shown as 1 to 6 in the figure.
- Write the important role of parts 5 and 6.
- Name the chamber of the heart which collects blood from the lungs through a blood vessel. Also write the name of the blood vessel.
- Write one structural and one functional difference between the blood vessels 4 and 5.
- What happens when there is a blockage in any coronary artery or any of their branches?
