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

Carbohydrate distribution in insulin, Q. Carbohydrate distribution in insul...

Q. Carbohydrate distribution in insulin? The carbohydrate distribution varies with the type of insulin prescribed. For example, in case of regular insulin 1/3rd each carbohydra

Protozoa , lest the characteristics of Protozoa

lest the characteristics of Protozoa

Explains mechanisms by which histones interact with dna, Which of the follo...

Which of the following best explains mechanisms by which histones interact with DNA? A. Histone core proteins interact with the main groove of DNA by the helix-turn-helix-turn

Explain microorganisms associated with the raw foods, Explain Microorganism...

Explain Microorganisms Associated With The Raw Foods? Foods of animal and plant origin are in direct contact with air, soil and water and get contaminated with the microorganis

What is the name of the dna duplication procedure, Q. What is the name of t...

Q. What is the name of the DNA duplication procedure? What is the major enzyme that participates in it? The process of duplication, or copying, of the DNA molecule is called re

Haccp control point, HACCP Control Point  HACCP Control Point :  Any...

HACCP Control Point  HACCP Control Point :  Any step at which biological, chemical or physical factors can be controlled.

Vitamin d, defitionce of vitamin d

defitionce of vitamin d

Endothecium - anther wall layers, Endothecium - Anther Wall Layers The...

Endothecium - Anther Wall Layers The layer of cells lying immediately next to the epidermis is the endothecium, which is responsible for the dehiscence of the anther. It is us

What are the factors responsible for corneal hydration, What are the factor...

What are the factors responsible for corneal hydration? The factors responsible for corneal hydration are as follows: i. Stromal swelling pressure ii. Barrier function of

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