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 Valve name                            

              

Function
    I   Aortic valve     A

Prevents blood from going backward from the pulmonary artery to the right ventricle.
    II   Mitral valve     B

 Prevent blood from flowing backward from the right ventricle to the right atrium.
    III   Pulmonic valve     C

 Prevents backward flow from the aorta into the left ventricle.
    IV   Tricuspid valve     D

 Prevent backward flow from the left ventricle to the left atrium.

 

Option: 1

I – A , II – B, III – C, IV – D


Option: 2

 I – B , II – C , III – A , IV – D


Option: 3

 I – C , II – D , III – A , IV – B


Option: 4

 I – D , II – A , III – B , IV – C 

 

 


Answers (1)

best_answer

  • Correct answer is option 3 - I – C , II – D , III – A , IV – B

  • Aortic valve: This valve has three leaflets. They open to let blood flow from your heart’s left ventricle to the aorta. The aorta is the largest blood vessel in your body. It brings oxygenated blood from your heart to the rest of your body. The aortic valve prevents backward flow from the aorta into the left ventricle.

  • Mitral valve: This valve has two leaflets. They allow blood to flow from the lungs into the left atrium. And they prevent backward flow from the left ventricle to the left atrium.

  • Pulmonic valve: This valve also has three leaflets. They allow blood to pump from the right ventricle to the pulmonary artery. This artery leads to the lungs, where blood picks up oxygen. The pulmonary valve prevents blood from going backward from the pulmonary artery to the right ventricle.

  • Tricuspid valve: This valve has three leaflets. They allow blood to flow from the right atrium to the right ventricle. They also prevent blood from flowing backward from the right ventricle to the right atrium.

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jitender.kumar

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