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Q.

How many valves does a human heart have? ;- 0

Tags: money, education, science
Asked by jaya, 27 Jan '12 06:56 pm
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Answers (11)

1.

A heart valve normally allows blood flow in only one direction through the heart. The four valves commonly represented in a mammalian heart determine the pathway of blood flow through the heart. A heart valve opens or closes incumbent upon differential pressure on each side.

The four valves in the heart are:

The two atrioventricular (AV) valves, which are between the atria and the ventricles, are the mitral valve and the tricuspid valve.
The two semilunar (SL) valves, which are in the arteries leaving the heart, are the aortic valve and the pulmonary valve.
A form of heart disease occurs when a valve malfunctions and allows some blood to flow in the wrong direction. This is called regurgitation
Source: wiki//
Answered by LIPSIKA, 27 Jan '12 07:13 pm

 
  
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2.

The human heart has four valves: the aortic, mitral, pulmonary, and tricuspid valves. Heart valve disease occurs when one or more of these valves do not work properly. Normally, these valves have tissue flaps that open to let blood flow through or out of your heart, and then shut to keep the blood from flowing backward. All of this is highly coordinated with the heart beat. The main function of the valves is to keep blood flowing in one direction through the hearts chambers.
Source: google search
Answered by anil garg, 29 Jan '12 11:58 pm

 
  
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3.

4
Answered by PARTHA PATHAK, 27 Jan '12 06:57 pm

 
  
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4.

There are four valves of the heart: two are located between the atria and ventricles of the heart (called atrioventricular valves) and two are located in the major vessels leaving the valves (called semilunar valves). The left atrioventricular valve is also known as the bicuspid valve or the mitral valve. The right atrioventricular valve is also known as the tricuspid valve. The two semilunar valves are named after the vessel they lie within: the left semilunar valve is called the aortic valve because it lies within the aorta; the right semilunar valve is called the pulmonic valve because it lies within the pulmonary artery
Answered by ajay, 27 Jan '12 06:58 pm

 
  
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5.

Four
Answered by yusuf syed, 30 Jan '12 11:17 pm

 
  
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6.

Four
Answered by vedprakash sharma, 27 Jan '12 09:26 pm

 
  
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7.

Four valves I think
Answered by rajnikant raiyarela, 27 Jan '12 07:39 pm

 
  
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8.

Four chambers
two auricles
and two ventricles
Source: self
Answered by ambuj kumar, 27 Jan '12 07:03 pm

 
  
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9.

Four
Answered by Dharmarajan, 27 Jan '12 06:57 pm

 
  
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10.

I think two not sure , i studied that in science but i forgot that after the exam finished
Answered by nahu khan, 27 Jan '12 06:57 pm

 
  
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