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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
Multiple choice question. Tick (✓) the correct choice:
Human heart has
- one auricle and one ventricle.
- two auricles and one ventricle.
- two auricles and two ventricles.
- one auricle and two ventricles.
The help of a well-labelled diagram describes the internal structure of the human heart.
Blood is pumped by
‘Heart of heart’ is called ______
Why are the walls of the left ventricle thicker than the other chambers of the heart?
For which of the following reason the SA node acts as the normal pacemaker?
The heart forms an effective barrier against infection by microbes and pathogens.
Analogy:
Heart: Pericardium membrane.
Lungs: ______.
Draw the neat Labelled diagram of the internal structure of the human heart.
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
