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प्रश्न
What is hypertension? Why is it caused? What harm can it do?
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उत्तर
Hypertension is the term used for high blood pressure. It is known as a "silent killer".
High blood pressure results from the tightening (constriction) of very small arteries called arterioles. Arterioles regulate the blood flow through our body. As these arterioles constrict, the heart has to work harder to pump the blood through the smaller space. Due to this, the pressure inside the vessels grows. Very high blood pressure can lead to the rupture of the artery and internal bleeding.
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संबंधित प्रश्न
What are the components of the transport system in human beings? What are the functions of these components?
Describe the function of Heart.
Name the following:
The valve of right auriculo-ventricular aperture.
Name the following:
The first heart sound.
Short answer question.
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Which of the following has thickest wall?
Blood is pumped by
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Why are the walls of the left ventricle thicker than the other chambers of the heart?
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A coronary sulcus is found ______
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Give the meaning of pacemaker.
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- Give a suitable reason to justify your answer in (a).
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Give the exact location of the pericardium.
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Lub : Atrioventricular valves :: Dup : ______
