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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
Normal activities of the heart are regulated by ______________.
Which vein brings clean blood from the lungs into the heart?
Fill in the blank with suitable word given below:
The blood loaded with carbon dioxide from the body comes into the __________ of the heart.
The diagram given alongside represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
Name the phase.
Name the following:
The inflammation of pericardium.
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
What type of blood flows through the parts marked '1' and '2'?
Why is the SA node called the pacemaker of the heart?
Name the Following
Number of chambers present in the human heart.
Complete the following sentence with appropriate word:
The ______ is the most powerful organ in the circulatory system.
State the Function: Bundle of His
Name two-layered protective covering of the human heart.
Identify the CORRECT statement with respect to serous pericardium.
Which of the following event occurs during atrial systole?
______ valve is present at the opening of coronary sinus
Blood capillaries show the presence of ______
Draw a neat diagram of the conducting system of human heart and label AV node, Bundle of His and Purkinje fibres.
Heart sound 'dub' is caused due to closing of ______.
Explain the term Ligamentum arteriosum.
Explain the term Chordae tendinae.
