Advertisements
Advertisements
Question
What is the Rh-factor?
Solution
The Rh-factor was first discovered in the Rhesus monkey. It was found that Rh (rhesus) antigens were causing many of the transfusion failures that were unexplained by the A-B-O system. There are at least eight different Rh antigens so far. The person bearing Rh-factor is Rh+ve and a person who does not possess this factor is Rh-ve.
APPEARS IN
RELATED QUESTIONS
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 type 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?
Given below is certain structure, write the term for the functional activity.
Erythrocytes and …………………………………
Why is it necessary to know the blood groups before giving transfusion?
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
Give reason for the following:
Atrial wall is less muscular than the ventricular wall.
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 |
Cardiac muscles are ______.
Find the odd one out.
Veins have valves at intervals in their inner lining whereas the arteries do not have valves. Explain.
Describe how the exchange of oxygen and carbon dioxide gases takes place in the lungs.
