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

Defone economic consequences of malnutrition, Defone Economic consequences ...

Defone Economic consequences of malnutrition? Figure explains the economic consequences of malnutrition. You would note from the Figure that the economic productivity of the in

Define about the types of indicators, Define about the Types of indicators?...

Define about the Types of indicators? The various types of indicators used are: (i) Acid-base indicators (ii) Redox indicators (iii) Metal ion indicators (iv) Preci

Explain the role of cuvier in animal taxonomy, Explain the role of cuvier i...

Explain the role of cuvier in animal taxonomy? Cuvier (1769-1832) was critical of Lamarck's evolutionary concept which thereafter remained in oblivion for half a century. Cuvi

Sporophyte positioned in relation to the gametophyte, Q. Generally where is...

Q. Generally where is the sporophyte positioned in relation to the gametophyte in bryophytes? How does the sporophyte obtain nutrients? The bryophyte sporophyte generally is a

Phylem porifera, please give us this phylem''s example...

please give us this phylem''s example...

What is malnutrition, What is malnutrition? Malnutrition can be defined...

What is malnutrition? Malnutrition can be defined as a pathological condition resulting from a relative or absolute deficiency or excess of one or more of the essential nutrien

Describe the use of sorbates acid in microorganisms, Q. Describe the use of...

Q. Describe the use of Sorbates acid in Microorganisms? Sorbic acid is an unsaturated carboxylic acid whose salts as sodium, calcium or potassium are used in foods upto

Phosphate group, Shift of the phosphate group from carbon 3 to carbon 2 ...

Shift of the phosphate group from carbon 3 to carbon 2 Shift of thephosphate group form carbon 3 to carbon 2: This reversible reaction is  catalyzed by phosphoglycerate mutas

Explain requirements and recommended dietary intake, Explain Requirements a...

Explain Requirements and Recommended Dietary Intake? A very small daily intake of vitamin C (10-15 mg/day for an adult) is required to avoid deficiency and stave off scurvy. Ho

Name some emulsifiers which are present in nature, Name some emulsifiers wh...

Name some emulsifiers which are present in nature? There are many emulsifiers which are present in nature such as phospholipids e.g. lectin which is present in egg yolk which a

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