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प्रश्न
Which organ acts as a pump in the circulatory system?
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उत्तर
In the circulatory system, the heart acts as a pump to push out blood.
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संबंधित प्रश्न
The diagram given below represents a section of the human heart. Answer the questions that follow :
(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds ‘LUBB’ and ‘DUP’?
(iv) Name the blood vessels that supply oxygenated blood to the heart muscles.
(v) Draw neat labelled diagrams of a cross section of an artery and a vein.
Explain Diapedesis.
With which human organ system (or human systems) is vena cava associated?
Angina pectoris is due to
Is it true that your heart beats more than one lac times per day?
What is the function of spleen?
How do you account for the following difference?
The left ventricle has thicker walls than the right ventricle.
Given diagram shows a simple diagram of the circulation of blood in a mamma showing the
main blood vessels, the heart, lungs and body tissues. The blood vessel, labelled 6, contains
deoxygenated blood and the valve leading to it has three semi-lunar pockets.
(a) Name the blood vessels and organs marked by numbers 1 to 8.
(b) What is meant by the term ‘double circulation’ of blood in mammals?
(c) what is diastole?
[There is an “error” in the diagram. According to the usual practice the pulmonary (lung)
circulation is shown upward and the systemic downward, but here it is reversed].
Choose the correct answer:
English physician who discovered blood circulation was ___________
Fill in the blanks with suitable words given below:
The liquid part of coagulated blood is known as ______.
Multiple choice questions. Tick ( ✓ ) the correct choice:
The blood vessels in which blood goes away from the heart to different body parts are
True or false:
People with blood group ‘O’ are called universal recipients
What is the Rh-factor?
Name the Following
Oxygen is transported by the blood in the form of
State the Location: Spleen
Long answer question:
Describe human blood and give its functions.
Use your brain power!
How is the air that we inhale purified in our body?
The stomach is like a ______.
The heart is covered by ______.
Given below are four statements regarding human blood circulatory system:-
- Arteries are thick walled and have narrow lumen as compared to veins.
- Angina is acute chest pain when the blood circulation to the brain is reduced.
- Persons with blood group AB can donate blood to any person with any blood group under ABO system.
- Calcium ions play a very important role in blood clotting.
Which two of the above statements are correct?
