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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.
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
Which vein brings clean blood from the lungs into the heart?
Name any four heart conditions that occur commonly.
When are the sounds ‘LUBB’ and ‘DUB’ produced during heartbeat ?
State the Function: Vena cava
Which of the following has thickest wall?
In normal health condition, ventricular systole lasts for ______.
Give reason:
Valves are present in the veins.
If a person has a heart attack, what must be done immediately?
P. Loosen his/her clothing
Q. Make him/her lie down in an airy room
R. Rush him/her to the hospital
S. Engage him/her in a conversation
The ______ have thin and less muscular ______ and have ______ to prevent back flow of ______.
Write the exact location of the following:
Heart
