Advertisements
Advertisements
Question
State the functions of blood in our body.
Advertisements
Solution
Following are the functions of blood:
- It transports oxygen from the lungs to the cells.
- It carries carbon dioxide, a waste product, from the body cells to the lungs.
- It fights diseases and infections.
- It regulates the body temperature.
- It carries hormones to different organs of the body.
APPEARS IN
RELATED QUESTIONS
Describe the function of the heart.
Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin ?)
Why is it necessary to know the blood groups before giving transfusion?
Name the following:
The kind of blood cells which can squeeze out through the walls of one category of blood vessels.
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.
Bone marrow - ______.
When are the sounds "LUBB" and "DUP" produced respectively during heart beat?
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 |
Find out my partner.
| Group 'A' | Group 'B' |
| 1. Heart beats | a. 350 ml |
| 2. RBC | b. 7.4 |
| 3. WBC | c. 37∘C |
| 4. Blood donation | d. 72 |
| 5. Normal body Temperature | e. 50-60 lakh/mm3 |
| 6. pH of oxygenated blood | f. 5000-6000 per mm3 |
Explain the structure and function of human blood.
Choose the correct answer:
English physician who discovered blood circulation was ___________
State the Location: Spleen
Choose the correct alternative.
What is the minimum number of the plasma membrane that oxygen has to diffuse across to pass from air in the alveolus to haemoglobin inside a RBC?
Analogy
Lungs: Respiratory system:: _______: Circulatory system.
Serum differs from blood in lacking ____________.
From the following identify the normal haemoglobin count in adult male.
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?
Name these:
Three components of circulatory system.
