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प्रश्न
The process of keeping the blood flowing continuously throughout the body.
पर्याय
circulation
trachea
diaphragm
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उत्तर
The process of keeping the blood flowing continuously throughout the body.-Circulation
संबंधित प्रश्न
Give appropriate biological or technical terms for the following :
The complex consisting of a DNA strand and a core of histones
Given below is a diagram of a human blood smear.
Study the diagram and answer the questions that follow:
a) Name the components numbered ‘1’ to ‘4’
b) Mention two structural differences between the parts ‘1’ and ‘2’.
c) Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
d) What is the average lifespan of the component numbered ‘1’ ?
e) Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain
Name the following:
The phase of the cardiac cycle in which the auricles contract.
Match the items in Column ‘A’ with those in column ‘B’ Rewrite the correct matching pairs.
| Column A | Column B | ||
| (a) | SA Node | (i) | Plasma |
| (b) | Defective haemoglobin in RBC | (ii) | Serum |
| (c) | Muscle fibres located in heart | (iii) | Pacemaker |
| (d) | The liquid squeezed out of blood during clotting | (iv) | Sickle cell anaemia |
| (e) | Never tires, keep on contracting and relaxing | (v) | Purkinje fibres |
| (f) | Cardiac cycle | (vi) | Cardiac muscle |
| (g) | Liquid part of the blood without corpuscles | (vii) | 0·85 sec |
pH of oxygenated blood is ______.
Given alongside is a diagram of human heart showing its internal structures. Label the parts marked 1 to 6, and answer the following questions.
- Which types of blood is carried by the blood vessel marked 2?
- Name the main artery which takes the blood from heart to different parts of the body?
- Which chamber of the heart receives deoxygenated blood from the body?
- Which chamber of the heart receives oxygenated blood from the lungs?
Respiration takes place because of its up and down movement.
Analogy
Arteries : Carry blood from the heart:: _________ :carry blood to the heart.
______ WBCs are present per mm3 of blood.
Hematocrit is ______.
