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प्रश्न
Mention the exact location of the Pulmonary semilunar valve
Where is the following located?
Pulmonary semilunar valves
Write the exact location of the following:
Pulmonary semilunar valve
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उत्तर
Pulmonary semilunar valves are located at the opening of the right ventricle into the pulmonary artery.
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संबंधित प्रश्न
State the exact location of the Chordae tendinae
State the functions of blood in our body.
Give reason, why a matured mammalian erythrocyte lacks nucleus and mitochondria?
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 |
Given diagram shows a simple diagram of the circulation of blood in a mamma showing the
main blood vessels, the heart, lungs and body tissues. The blood vessel, labelled 6, contains
deoxygenated blood and the valve leading to it has three semi-lunar pockets.
(a) Name the blood vessels and organs marked by numbers 1 to 8.
(b) What is meant by the term ‘double circulation’ of blood in mammals?
(c) what is diastole?
[There is an “error” in the diagram. According to the usual practice the pulmonary (lung)
circulation is shown upward and the systemic downward, but here it is reversed].
What is haemoglobin? State the consequences of deficiency of haemoglobin in our bodies.
Why does the left ventricle possess a thicker wall than the right ventricle?
Which side of the heart (left or right) contains oxygenated blood?
What are seen as greenish blue lines in our hands and legs?
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’.
