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

Explain the adverse effects of rifamycin, Adverse effects of rifamycin  ...

Adverse effects of rifamycin  No severe adverse effects were observed in clinical trials with rifaximin. There have been a few postmarketingeports of hypersensitivity reactions

Heat production, Heat Production In the Homeotherms heat production m...

Heat Production In the Homeotherms heat production must be elevated if the ambient temperature falls below the critical temperature. Although all metabolic processes result i

Man-made disasters- nuclear disasters, Among all the environmental disaster...

Among all the environmental disasters that might be caused by humans, nuclear disasters have the greatest potential of causing severe damage to life property. The released as a con

What factor cause the measurement to change, During gym class Sally noticed...

During gym class Sally noticed that her friend Melissa always ran faster than her. Sally knew that they exercised equally, so she wondered what could cause Melissa to run so fast.

Sex, How can I fuck my girlfriend without taking out cum?

How can I fuck my girlfriend without taking out cum?

Determine the solubility of micronutrient cations, Determine the solubility...

Determine the solubility of micronutrient cations The solubility of micronutrient cations is at a maximum at low pH values. As the pH increases the ions of these elements first

Ureotelism - excretion, Normal 0 false false false EN-I...

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

What are the major complications of diabetes mellitus, Q. Why do diabetic p...

Q. Why do diabetic patients often undergo dietary sugar restriction? What are the major complications of diabetes mellitus? Diabetic patients are frequently advised to ingest f

What is the function of lh in the menstrual cycle, What is the relationship...

What is the relationship between the estrogen level and the LH level in the menstrual cycle? What is the function of LH in the menstrual cycle and when does its blood concentration

Define principle of detection of metanil yellow, Define Principle of Detect...

Define Principle of Detection of Metanil Yellow? Non-permitted colours like lead chromate, metanil yellow, auramine, rhodamine B are used to brighten the foods especially spice

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