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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
Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin ?)
Is it true that your heart beats more than one lac times per day?
Name the following:
The blood vessels which start from capillaries and end in capillaries.
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
what is Venule?
Give reason for the following:
Blood flowing away from the stomach and intestines is put into circulation via the liver and
not directly.
Explain the difference.
Arteries and veins.
Find the odd one out.
Fill in the blanks with suitable words given below:
The blood loaded with carbon dioxide from the body comes into the ______ of the heart.
Fill in the blank:
______ carry pure blood.
Describe the functions of the: Heart
Define the Arteries.
Define the Veins.
Name the main artery which carries blood to different parts of the body.
How many litres of blood does an adult human body have?
Veins have valves at intervals in their inner lining whereas the arteries do not have valves. Explain.
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.
Analogy
Lungs: Respiratory system:: _______: Circulatory system.
______ prevent blood clotting.
