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प्रश्न
Heart sounds are produced due to ______.
-
closure of tricuspid and bicuspid valves
-
rushing of blood through valves producing turbulence
-
closure of atrioventricular and semilunar valves
-
entry of blood into auricles
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उत्तर
Heart sounds are produced due to closure of tricuspid and bicuspid valves and closure of atrioventricular and semilunar valves.
Explanation:
The first sound "LUBB" is produced when the atrio-ventricular (tricuspid and bicuspid) valves get closed sharply at the start of ventricular systole. The second sound "DUP" is produced when at the beginning of ventricular diastole, the semilunar valves at the roots of aorta and pulmonary artery get closed.
संबंधित प्रश्न
The exact location of the tricuspid valve
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?
What is haemoglobin? State the consequences of deficiency of haemoglobin in our bodies.
Which side of the heart (left or right) contains oxygenated blood?
Describe the functions of the: Blood vessels
Define the Veins.
Explain the Term
Hepatic Portal System
Name the Following
The blood plasma from which fibrinogen has been removed.
Short answer question.
Write a note on blood plasma.
Hematocrit is ______.
