Is there any significance for it ?
Serious answers are recommended
2006-08-03 23:13:19 · 12 answers · asked by smile 2 in Science & Mathematics ➔ Medicine
See this website for a diagram of the heart valves:
http://texasheart.org/HIC/Anatomy/valves.cfm
Four types of valves regulate blood flow through your heart:
1) The tricuspid valve regulates blood flow between the right atrium and right ventricle.
2) The pulmonary valve controls blood flow from the right ventricle into the pulmonary arteries, which carry blood to your lungs to pick up oxygen.
3) The mitral (also called bicuspid) valve lets oxygen-rich blood from your lungs pass from the left atrium into the left ventricle.
4) The aortic valve opens the way for oxygen-rich blood to pass from the left ventricle into the aorta, your body's largest artery, where it is delivered to the rest of your body.
It is the LEFT side of the heart that is the strongest and works the hardest. Aside from the above mentioned functions, the only difference between the bicuspid and tricuspid is the number of "cusps" or sections. Bicuspid has 2 and tricuspid has 3. There is no documented significance for the right side having the tricuspid and the left having the mitral/bicuspid.
2006-08-04 02:10:03 · answer #1 · answered by browneyedgirl 4 · 0⤊ 0⤋
Bicuspid Valve Location
2016-09-28 21:17:57 · answer #2 · answered by ? 4 · 0⤊ 0⤋
1
2016-05-18 22:36:52 · answer #3 · answered by Wilma 3 · 0⤊ 0⤋
the right side of the heart has lower pressures as the right ventricle only has to pump blood to the lungs. This lower pressure means a 3 flap valve (tricuspid) can stay closed with these pressures. The left side of the heart, however, is the workhorse side as the left ventricle has to pump blood to the entire body. A 3 flap valve could not stand up to these higher pressures so the left side has a 2 flap valve (bicuspid). Hope this helps.
2016-03-16 13:31:08 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Blood entering the right atrium is shunted to the left atrium across the foramen ovale. In utero, pressures in the right side of the heart are greater than in the left side. Blood readily flows from right -> left. Once the lungs fill with air, however, the situation reverses. Pressures on the left side are then greater than on the right. By the time of birth the connections between the right and left side have closed (or so one hopes..), so there is no flow of blood from left to right.
Blood making it into the right ventricle can readily cross into the left ventricle as the interventricular septum has not yet formed to separate the right ventricle from the left ventricle.
(Not shown). Blood entering the Pulmonary arteries from the right ventricle can cross directly into the aorta via a connection called the ductus arteriosis. This connection normally closes a few days after birth.
Aside from having a single ventricle, you can see that nothing separates the atria from the ventricles. They form a continuous canal - the atrioventricular canal. Within this area lie the endocardial cushions (shown in blue), areas of developing tissue that form part of the ventricular walls. Most people believe they contribute little to no tissue to the actual valve leaflets. However, their position within the atrioventricular canal is of importance. They also fuse during the 4th week of development to form a ring of tissue from which the valves will develop.
Hope this helps. :-)
2006-08-08 04:31:58 · answer #5 · answered by artisticbabe5649 1 · 0⤊ 0⤋
Well, they block off blood from going back into a different chamber. Biscupid valve's function is that de-oxygenated blood doesn't go back and mix with the oxygenated blood. And to think, in one heart beat, blood goes up and down your whole body! Amazing, isn't it?
2006-08-06 06:02:54 · answer #6 · answered by *~*~*~* 4 · 0⤊ 0⤋
that is because the right side of the heart has to pumom the blood with a greater force as it has to reach all the parts of the body. tri cuspid valves are strong and so the blood does not go into the atrium and goes out of the blood vessel which is supposed to carry it out.
2006-08-04 00:16:02 · answer #7 · answered by shaleen c 2 · 0⤊ 2⤋
In embryology class, I learned that this has to do with the way the heart twists around while it is still forming. If the heart does not twist enough, it leads to a condition called "transposition of the great vessels" and the baby who is born with this is cyanotic (blue because of lack of oxygen).
2006-08-11 16:17:58 · answer #8 · answered by Cor 3 · 0⤊ 0⤋
is like you ask why do we have hands??legs?................
the evolution and mother nature find that this is best for the job the heart must do
the difference is the number of cups and one is right side and the other left side
there is no special meaning or significance for that
2006-08-04 06:52:37 · answer #9 · answered by qwq 5 · 0⤊ 2⤋
One pumps blood in the other pumps blood out.
2006-08-03 23:20:27 · answer #10 · answered by Amber 2 · 0⤊ 0⤋