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

Camptotheca acuminata, This species is an ornamental tree in China, and has...

This species is an ornamental tree in China, and has yielded the clinically active agents topotecan, irinotecan, and 9 -aminocamptothecin, which are semisynthetically derived from

An insect collecting net, An insect collecting net A useful insect net ...

An insect collecting net A useful insect net can be made from a round stick such as a broom or mop handle, some heavy wire and mosquito netting or cheese cloth. Bend a heavy pi

Why in the preparation of a karyotype analysis, Why in the preparation of a...

Why in the preparation of a karyotype analysis is the use of a substance like colchicine interesting? The Colchicine is a substance that disallows the formation of microtubules

What do atp and adp mean, What do ATP and ADP mean? What are the roles of t...

What do ATP and ADP mean? What are the roles of these molecules for the cellular energetic metabolism? ATP is an abbreviation of adenosine triphosphate, a molecule made of aden

Respiration, how energy enters and then flows through a biological system

how energy enters and then flows through a biological system

Gastro epiploic artery and inferior epigastric artery, Gastro Epiploic arte...

Gastro Epiploic artery GEA is seldom used now. Patency has been reported as 94 per cent at one year, 88 per cent at five years and 83 per cell1 at ten years. Inferior Epiga

Explain technical factors influencing food production, Explain Technical fa...

Explain Technical factors influencing food production? Improvement in technology has a significant impact on productivity. Improvements may occur in seed production, fertilizer

What is salmonella typhosn, What is salmonella typhosn Typhoid is  an e...

What is salmonella typhosn Typhoid is  an enteric fever, which relates  to acute infection of  short duration. It is   caused by bacteria called Salmonella typhosn about which

Cardiac cycle, Cardiac Cycle Cardiac cycle has two phases-systole and...

Cardiac Cycle Cardiac cycle has two phases-systole and diastole. Ventricular systole and diastole occur as a result of depolarization and chamber volume and pressure. The di

What is skeletal girdles? explain in brief., What is Skeletal girdles? Expl...

What is Skeletal girdles? Explain in brief. In vertebrates, bones which connect the appendages on the left and right side of appendicular skeleton to each other. Skeletal girdl

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