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Question
Name the following:
The structure that holds the heart valves in position.
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Solution
Pacemaker
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MULTIPLE CHOICE TYPE:
(Select the most appropriate option)
The valve present between the right atrium and the right ventricle is the
(a) tricuspid valve
(b) bicuspid valve
(c) semi-lunar valve
(d) mitral valve
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
What is haemoglobin? State the consequences of deficiency of haemoglobin in our bodies.
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 |
Find the odd one out.
Why does the left ventricle possess a thicker wall than the right ventricle?
Why is circulatory system also known as transport system?
In a closed circulatory system, blood is completely enclosed within:
