Illustrate pathology, Biology

Assignment Help:

Q. Illustrate Pathology?

Following rheumatic fever, over next few years to decades, the typical funnel shaped mitral valve assumes a fish mouth appearance. During rheumatic fever endocardium of the leaflets gets inflamed, edematous and develops pin head vegetations at the tips or along the line of closure. These heal with fibrosis resulting in thickening of the leaflets with limited mobility. Some times there may be calcific deposits over the leaflets. The commissures get fused and in diastole the larger anterior leaflet pulls the posterior leaflet anteriorly. This decreases the valve opening in diastole. Thickened and fused chordae further limit the opening of the valve. Subvalvular apparatus, i.e., the chordae may fuse to such an extent that a secondary orifice may develop below the mitral valve limiting the diastolic blood flow. The abnormal valvular flows due to initial valvulitis may further worsen the thickening and fibrosis of the leaflets progressively. The progression may be rapid in some patients due to repeated attacks of rheumatic carditis, genetic or hormonal factors or due to increased hemodynamic load as seen in manual laborers.


Related Discussions:- Illustrate pathology

Calculate the volume of blood plasma, If one determines the concentration o...

If one determines the concentration of cortisol in the blood plasma to be 10 ugrams/ml and that in a 24 hour period a person excretes 10 mgs of cortisol, calculate the volume of bl

List the requirements of implant materials, List the requirements of implan...

List the requirements of implant materials. a) Biologically compatibility: an ideal implant material will elicit mainly physiological reactions within the surrounding tissues (

Pneumonia, P n e u mo n i a It is inflammation of pulmonary pare...

P n e u mo n i a It is inflammation of pulmonary parenchyma, usually accompanied by inflammation of bronchioles, and is characterized by cough, increased respiratory rat

Define basic instruments used in biochemical laboratories, Basic Instrument...

Basic Instruments /Equipment Used In biochemical laboratories and important Working tips The first practical in this manual will orient you to the various equipment, apparatuses

Determine some guidelines for cancer prevention, Determine Some Guidelines ...

Determine Some Guidelines for Cancer Prevention? The guidelines for cancer prevention focus on the following: 1. Include plant-based diet, limiting red meat in particular.

What are sarcomeres, What are sarcomeres? Sarcomeres are the contractil...

What are sarcomeres? Sarcomeres are the contractile units of the muscle tissue formed of alternating actin blocks (thin filaments) and myosin blocks (thick filaments). Various

Explain autoxidation, Autoxidation It is generally agreed that "autoxid...

Autoxidation It is generally agreed that "autoxidation", that is, the reaction with molecular oxygen via a self - catalytic mechanism, is the main reaction involved  in oxidati

The social environment - stress of hospitalization, The Social Environment ...

The Social Environment   When the child is admitted to the hospital his social environment is totally changed and all health team members are strangers for him. It is your resp

Hindbrain - medulla oblongata, MEDULL A OBLONGATA - Conical in appeara...

MEDULL A OBLONGATA - Conical in appearance. Lower most part of hind brain. It's lumen is metacoel or 4th ventricle. An oval mass pons virolli lies above medula oblongeta. I

What is an erlenmeyer flask and how is it used, What is an Erlenmeyer flask...

What is an Erlenmeyer flask and how is it used? It is same to a beaker, except that it gets narrower at the top. It is use to hold liquids and do reactions in it.

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