Advertisements
Advertisements
प्रश्न
When are the sounds "LUBB" and "DUP" produced respectively during heart beat?
Advertisements
उत्तर
- The first sound LUBB, is produced when the atrioventricular valves, i.e. tricuspid and bicuspid, valves close at the start of ventricular systole.
- The second sound, DUBB, is produced at the beginning of ventricular diastole when the pulmonary and aortic semilunar valves close.
APPEARS IN
संबंधित प्रश्न
Explain with tile help of a chart, explain the compatibility of human blood groups.
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Coronary artery : Heart :: Hepatic artery : ______
Fill in the blanks with suitable words given below:
The two lower chambers of the heart are called ______.
Define the Arteries.
Describe how the exchange of oxygen and carbon dioxide gases takes place in the lungs.
______ WBCs are present per mm3 of blood.
Which of the following is the main site of erythropoiesis in adults?
Which of the following is a major part of the plasma?
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 the following:
Contraction phase of heart.
