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प्रश्न
Draw labelled diagram of internal structure of human heart.
Label right atrium, mitral valve, left ventricle and pulmonary semilunar valve.
Write a function of Eustachian and tricuspid valve found in human heart.
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उत्तर
- Eustachian valve guards the opening of the postcaval vein (inferior vena cava).
- The tricuspid valve is present in the right AV aperture and prevents backflow of blood, maintaining a unidirectional blood flow.
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संबंधित प्रश्न
Fill in the blank with suitable word given below:
The two lower chambers of the heart are called ___________.
Define the term Circulatory system.
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
Name the parts numbered 1 to 6.
The free edges of cuspid valves are attached to the papillary muscles of the heart by fibres are called ______.
Name two-layered protective covering of the human heart.
A vein differs from the artery in having ______.
Observe the diagram, Identify the parts labelled as P, Q, R, S. Choose the correct option for the conduction of cardiac impulse.
Explain the structure of heart.
The walls of the heart is made up of ______.
Give scientific reason.
Human heart is called as myogenic and autorhythmic.
