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

Anatomic factors in patient selection for mitral valvuloplas, Q. Anatomic F...

Q. Anatomic Factors in Patient Selection for Mitral Valvuloplasty ? The ideal patient is young, has pliable non calcified mitral leaflets, and mild subvalvular disease. TEE may

What is a cytoskeleton, What is a cytoskeleton? What are its main constitue...

What is a cytoskeleton? What are its main constituents in animal cells? Cytoskeleton is the cytoplasmic structure that handles the cell, keeps its shape and fixates and moves t

Advantage & disadvantage of using algae as source of protein, Define Advant...

Define Advantage & disadvantage of using Algae as source of protein? Advantage Produces proteins which have almost all the Essential Amino acids. Rich in tyrosine

Why he literally paralyzed the cilia, Your patient has a respiratory diseas...

Your patient has a respiratory disease that has literally paralyzed the cilia. Explain why this patient would be at an increased risk for a respiratory infection.

What is the neuromuscular synapse, What is the neuromuscular synapse? N...

What is the neuromuscular synapse? Neuromuscular synapse is the structure by which the neural impulse passes from the axon of a motor neuron to the muscle cell. This structure

Express the answer as a whole number, Two true-breeding pea plants were cro...

Two true-breeding pea plants were crossed. One parent is round, terminal, and violet, constricted, while the other expresses the respective contrasting phenotypes of wrinkled, axia

Explain the bio availability of vitamin a, Explain the Bio availability of ...

Explain the Bio availability of Vitamin A? By now it is clear that vitamin A is supplied in two forms. One form is retinol, from animal foods such as liver, fatty fish, eggs, a

Embryology, what is meaning of haustoria

what is meaning of haustoria

Do echinoderms present internal or external fecundation, Do echinoderms pre...

Do echinoderms present internal or external fecundation? Is there sex division among individuals? The fecundation in echinoderms is external; gametes are liberated in water whe

Why are the tropical forests also known as stratified forest, Why are the t...

Why are the tropical forests also known as stratified forests? In the tropical forests tall trees of several species have their crowns forming a superior layer under which dive

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