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

Explain the obesity - problems of older children nutrition, Explain the Obe...

Explain the Obesity - Problems of Older Children and Adolescent Nutrition? One of the major problems is raising obesity rates (upto 30%) in urban, well-to-do school children.Th

How will it impact the rest of the organs, Starting at the esophagus, trace...

Starting at the esophagus, trace the pathway of food through the system. At each organ, indicate anatomical adaptations to the general GI tract tube structure that enhance the spec

Cellular machinery for the replication of nucleic acids, Which of the follo...

Which of the following statements is true? Answer Viruses are distict from cells by the absence of a lipid membrane around them. Viruses are parasites that require the cell's metab

Antonmy, bone modeling may occur?

bone modeling may occur?

Explain about the carbohydrate malabsorption, Explain about the Carbohydrat...

Explain about the Carbohydrate Malabsorption? Carbohydrates malabsorption is usually caused by an inherited or acquired (in intestinal infection, celiac disease, PEM) defect in

Explain glycogenolysis, Glycogenolysis Unlike glycogenesis, glycogenoly...

Glycogenolysis Unlike glycogenesis, glycogenolysis is the  breakdown of glycogen. Glycogen is  broken down  in  the  liver and muscle catalysed  by  the  enzyme glycogen phosph

Excreatory organ, what is the excreatory organ of silverfish?

what is the excreatory organ of silverfish?

Explain etiology, Etiology Fevers can be caused due to 1. Internal (...

Etiology Fevers can be caused due to 1. Internal (endogenous) factors:  This could be caused within the body. Examples are antigen-antibody reactions, malignant cancer, graf

Lymhatic system, composition formation and circulation of lymph

composition formation and circulation of lymph

What are the factors to an actual shift in the demand curve, What are the f...

What are the factors to an actual shift in the demand curve? Factors that cause an actual shift within the demand curve are as follows: When prices rise or fall that would c

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