Home
Class 10
BIOLOGY
What is Blood Pressure? How is blood pre...

What is Blood Pressure? How is blood pressure expressed?

Text Solution

Verified by Experts

The force exerted during the flow of blood against the lateral walls of arteries, is called Blood Pressure. Blood pressure is usually expressed in terms of systolic pressure and diastolic pressure.
Systolic pressure: The pressure, during ventricular systole, the left ventricle contracts and forces the blood into the aorta is called systolic pressure.
Diastolic pressure: The pressure, during diastole, the ventricle relax and the pressure falls to the lowest value, is called Diastolic pressure.
In a healthy adult, during normal resting condition the systolic and diastolic blood pressure is expressed as 120mm/80mm Hg.
Promotional Banner

Topper's Solved these Questions

  • TRANSPORTATION IN PLANTS AND CIRCULATION IN ANIMALS

    FULL MARKS|Exercise Additional Questions (Answer the following in detail.)|2 Videos

  • TRANSPORTATION IN PLANTS AND CIRCULATION IN ANIMALS

    FULL MARKS|Exercise Additional Questions ( Higher order thinking skills (HOTS))|4 Videos

  • TRANSPORTATION IN PLANTS AND CIRCULATION IN ANIMALS

    FULL MARKS|Exercise Additional Questions ( Anwer the following in a word or a sentence.)|12 Videos

  • STRUCTURAL ORGANISATION OF ANIMALS

    FULL MARKS|Exercise Additional Questions (IX. Higher Order Thinking Skills(HOTS)|3 Videos

  • VISUAL COMMUNICATION

    FULL MARKS|Exercise Additional Question Solved ( Long Answers:)|2 Videos

Similar Questions

Explore conceptually related problems

High blood pressure .

Define blood pressure .

What are blood cells?

Decrease in blood pressure is termed _____.

Ramu was 15 vears old when he went to a doctor to check his blood pressure. His pressure was around 158/98mmHg. The doctor advised him to measure his blood pressure at home for two weeks. He came to the doctor saying his average blood pressure was around 160/100mmHg. Doctor concludes that Ramu has high blood pressure or hypertension. If not controlled, hypertension can lead to heart failure, stroke and kidney failure. He returned to the doctor after two months after taking the drug, ACH inhibitor. This chemical blocks the production of angiotensin II, a powerful vasoconstrictor, so his blood pressure returned back to normal. 1. Why are people with high blood pressure at greater risk for having a hemorrhagic stroke? 2. Without medication Ramu's blood pressure was around 160/100mmHg after two weeks. Why this pressure was referred to as hypertension by the doctor. 3. Blocking the action of vasoconstrictor lower the blood pressure? Give reasons. 4. What is the role of ACH inhibitor in reducing blood pressure? 5. What conditions one might expect if the blood pressure is not controlled?

The ratio of red blood cells to blood plasma is expressed is ..............

What is the drug used to treat high blood pressure? Explain its action with a flow chart.

Why a person surffering from high blood pressure is advised to take minimum quantity of common salt ?

The instruments used to measure blood pressure is