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प्रश्न
Define the Circulatory system.
Define the following term:
Circulatory system
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उत्तर
The circulatory system is a transport system moving substances throughout our body with the help of blood.
संबंधित प्रश्न
Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin ?)
Give appropriate biological or technical terms for the following
The relaxation phase of the heart.
Angina pectoris is due to
Name the following:
The phase of the cardiac cycle in which the auricles contract.
Given below is a certain structure, write its chief functional activity.
Bone marrow - ______.
A blood vessel which has small lumen and thick wall is ______.
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Coronary artery : Heart :: Hepatic artery : ______
Give reason, why a matured mammalian erythrocyte lacks nucleus and mitochondria?
What is diastole?
Given below is a highly schematic diagram of the human blood circulatory system.
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- Which part (state the number) represents the heart? Give reason in support of your answer.
- Which numbers represent the following, respectively?
Aorta Superior vena cava Hepatic portal vein Renal Vein Pulmonary artery Stomach
In which organ of our body does blood get oxygenated?
Veins have valves at intervals in their inner lining whereas the arteries do not have valves. Explain.
Differentiate between:
Arteries and Veins.
Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
Explain the Term
Hepatic Portal System
Name the Following
The blood plasma from which fibrinogen has been removed.
State the Location: Spleen
Why do we call saliva a digestive juice?
All the waste products of the body are excreted through the circulatory system.
From the following identify the normal haemoglobin count in adult male.

