Illustrate mitral valve orifice area, Biology

Assignment Help:

Q. Illustrate Mitral Valve Orifice Area?

The normal mitral valve orifice in an adult is 4-5cm2 when the valve is completely open in diastole. When the mitral valve orifice area is 1.0 cm2, then there will be a significant resting gradient across the valve and any requirement for increase cardiac output leads to an increase in LA and PCW pressure and results in Pulmonary edema. This therefore, represents "critical mitral valve orifice area".

The formula for calculating mitral valve orifice area is:

Where P = mean transmitral pressure gradient, and MVA = mitral valve area. Thus when the cardiac output is doubled, the transmitral gradient is quadrupled (if HR and DFP remain constant).


Related Discussions:- Illustrate mitral valve orifice area

Impact of technological change on the cost of health service, Impact of Tec...

Impact of Technological Change on the Cost of Health Service Technological developments entail improvement in production/service frontiers either by providing cost benefit adv

History of plant classification, Q. History of plant classification? Be...

Q. History of plant classification? Before Darwin's theory of evolution and publication of his epoch making work 'Origin of Species' in 1959 no outstanding basis for the classi

What are the most important structures in the nucleus, Q. What are the most...

Q. What are the most important structures within the cell nucleus? Within the cell nucleus the most important structures are the nucleolus, an optically dense region, spherical

How two organisms are interdependent, Give an example of how two organisms ...

Give an example of how two organisms are interdependent. Animals generate carbon dioxide and water, which is required by plants. Accept all reasonable answers.

PROTOZOA, WHAT IS THE CLASSIFICATION OF PROTOZOA ..

WHAT IS THE CLASSIFICATION OF PROTOZOA ..

How you would dispose off sharps and needles, Q. How you would dispose off ...

Q. How you would dispose off sharps and needles? Used needles should not be bent or broken prior to disposal. Unsheathed needles are placed directly into the designated, punctu

Exercise- heat production, Exercise- Heat Production During physical ...

Exercise- Heat Production During physical activity heat production by exercise can to some extent substitute for heat generated by shivering. However, exercise also tends to

Arterial blood gas studies, Arterial Blood Gas Studies: Purpose 1)  A me...

Arterial Blood Gas Studies: Purpose 1)  A measurement of partial pressure of oxygen and carbon dioxide  in arterial blood, as well as the pH  of  the blood.  2) The Partial p

Evolutionary innovation presented by nematodes, Q. What is the major evolut...

Q. What is the major evolutionary innovation presented by nematodes? What is the benefits of that innovation? The major evolutionary innovation of nematodes is the complete dig

Saliva spreading - temperature relations in animals, Normal 0 f...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd