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प्रश्न
Name of the valve between the left atrium and left ventricle and give its significance.
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उत्तर
Bicuspid or mitral valve is present between the left atrium and left ventricle. It prevents the backflow of blood from the ventricles to the auricle or atrium.
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संबंधित प्रश्न
Draw a sectional view of the human heart and label on it Aorta, Pulmonary arteries, Vena cava, Left ventricle.
Name the following:
The valve of right auriculo-ventricular aperture.
Name the following:
The first heart sound.
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.
Give Technical Term for the following:
What is the approximate weight of the heart of a man?
By which of the following mitral valve and tricuspid valve are attached to the papillary muscles?
______ is the opening of the upper chamber of the heart into the lower chamber.
Describe the flow of blood through the heart of human beings.
Fill in the blanks of the following paragraph using just two words – arteries and veins.
___(a)___ carry oxygen-rich blood from the heart to all parts of the body and ___(b)___ carry carbon dioxide-rich blood from all parts of the body back to the heart. ___(c)___ have thin walls and ___(d)___ have thick elastic walls. Blood flows at high pressure in ___(e)___. Valves are present in ___(f)___ which allow blood to flow only towards the heart. ___(g)___ divide into smaller vessels. These vessels further divide into extremely thin tubes called capillaries. The capillaries join up to form ___(h)___.
Write the exact location of the following:
Heart
