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![]() | The contents of the Mitral annulus page were merged into Mitral valve on February 22, 2016. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
I find the following statements more than dubious:
The valve between the left atrium and left ventricle of the heart.
The mitral valve has two cusps/leaflets (the anteromedial leaflet and the posterolateral leaflet) and gaurds an opening that normally admits two fingers.
(The orientation of the two leaflets resembles a bishop's miter, which is where the valve receives its name.)
Thus when the ventricle contracts the chorde pull the two cusps together closing the opening.
I agree with the dispute. Chordae do not pull on the valve to close, instead they prevent its prolapse, while the motion to closure is due to the pressure increase in the left ventricle. This is well documented in medical and scientific literate.
A current topic of research relates to the structure and function of the valve. The valve is densly innervated by TH (motor) and CgRP (sensory) nerves. These nerves have been tentivly shown to allow the valve to activly contract. It is possible that these small contractions assist in efficiency of blood passage.
Please go ahead and make this change. It is not only more accurate, but more importantly, unchallenged : ) Reid Sullivan 21:15, 17 August 2006 (UTC)
In fact, it is the pressure from the blood flow against the valve that allows it to form during development. The valve begins as a small lump of tissue and as blood passes by it, different areas of the lump detect different flow pressure. The valve then changes morphology to adapt to this flow. —Preceding
unsigned comment added by
65.188.35.187 (
talk)
03:51, 5 June 2008 (UTC)
Could someone direct from Left AV Valve to here? — Preceding unsigned comment added by 109.66.17.173 ( talk) 19:55, 28 January 2013 (UTC)
Needlessly fragmented. Can be readily merged without loss of content. Benefits readers by locating information in a single spot. Tom (LT) ( talk) 23:25, 27 December 2015 (UTC)
ഹായ് Prabeeshpuliullakandi ( talk) 19:04, 31 January 2018 (UTC)
Apparently, in small dogs, such as chihuauas, congenitally deformed mitral valves are relatively common. I donbt have a source for this. — Preceding unsigned comment added by 2001:8003:E422:3C01:40ED:3437:1883:5670 ( talk) 11:06, 26 December 2021 (UTC)
![]() | This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||
|
![]() | The contents of the Mitral annulus page were merged into Mitral valve on February 22, 2016. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
I find the following statements more than dubious:
The valve between the left atrium and left ventricle of the heart.
The mitral valve has two cusps/leaflets (the anteromedial leaflet and the posterolateral leaflet) and gaurds an opening that normally admits two fingers.
(The orientation of the two leaflets resembles a bishop's miter, which is where the valve receives its name.)
Thus when the ventricle contracts the chorde pull the two cusps together closing the opening.
I agree with the dispute. Chordae do not pull on the valve to close, instead they prevent its prolapse, while the motion to closure is due to the pressure increase in the left ventricle. This is well documented in medical and scientific literate.
A current topic of research relates to the structure and function of the valve. The valve is densly innervated by TH (motor) and CgRP (sensory) nerves. These nerves have been tentivly shown to allow the valve to activly contract. It is possible that these small contractions assist in efficiency of blood passage.
Please go ahead and make this change. It is not only more accurate, but more importantly, unchallenged : ) Reid Sullivan 21:15, 17 August 2006 (UTC)
In fact, it is the pressure from the blood flow against the valve that allows it to form during development. The valve begins as a small lump of tissue and as blood passes by it, different areas of the lump detect different flow pressure. The valve then changes morphology to adapt to this flow. —Preceding
unsigned comment added by
65.188.35.187 (
talk)
03:51, 5 June 2008 (UTC)
Could someone direct from Left AV Valve to here? — Preceding unsigned comment added by 109.66.17.173 ( talk) 19:55, 28 January 2013 (UTC)
Needlessly fragmented. Can be readily merged without loss of content. Benefits readers by locating information in a single spot. Tom (LT) ( talk) 23:25, 27 December 2015 (UTC)
ഹായ് Prabeeshpuliullakandi ( talk) 19:04, 31 January 2018 (UTC)
Apparently, in small dogs, such as chihuauas, congenitally deformed mitral valves are relatively common. I donbt have a source for this. — Preceding unsigned comment added by 2001:8003:E422:3C01:40ED:3437:1883:5670 ( talk) 11:06, 26 December 2021 (UTC)