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प्रश्न
What is meant by human circulatory system? Name the organs of the circulatory system in humans.
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उत्तर
The organ system that is responsible for the transport of materials inside the human body is known as the human circulatory system. In human beings, the organs of the circulatory system are the heart, arteries, veins, and capillaries.
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संबंधित प्रश्न
Give biological reasons for the following statements:
The left ventricle of the heart has a thicker wall than the right ventricle.
The vein that carries oxygenated blood.
Explain Diapedesis.
The valve which prevents back flow of blood in the veins and lymph vessels ______.
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].
What is meant by the term 'double circulation' of blood in mammals? What is diastole?
Fill in the blanks with suitable words given below:
The two lower chambers of the heart are called ______.
Fill in the blanks with suitable words given below:
The carbon dioxide loaded blood from right ventricle is pumped into the lungs through ______.
Multiple choice questions. Tick ( ✓ ) the correct choice:
Human heart has
Multiple choice questions. Tick ( ✓ ) the correct choice:
The blood vessels in which blood goes away from the heart to different body parts are
Match the statements in Column A with those in Column B
| Column A | Column B | ||
| 1 | Heart | a | Movement of materials |
| 2 | Food and oxygen | b | Channels for transport in man |
| 3 | Carrier of oxygen | c | A living pump |
| 4 | Circulation | d | Materials needed by every living being |
| 5 | Arteries and veins | e | Red blood cells |
Why is a person having blood group AB called universal recipient and a person with blood group O called a universal donor?
Write a short note on the human heart.
Differentiate between:
Red blood cells and White blood cells
Given below is a schematic representation of the circulatory system in man. Study the same and answer the questions that follow:
(i) Label the parts 1 to 4 indicated in the diagram.
(ii) Give one difference between parts 1 and 2 based on:
(a) their structure
(b) the nature of blood flowing through them.
(iii) What is the specific name of the type of blood circulation that takes place between the heart and the lungs?
(iv) Name the valve found at the beginning of the part labeled 3.
Identify the normal haemoglobin count in human females.
______ is an agranulocyte.
The heart is covered by ______.
Name these:
Three components of circulatory system.
