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 the lysogenic cycle in diversity of life, Explain the The Lysog...

Explain the The Lysogenic Cycle in diversity of life? The Lysogenic Life History of Bacteriophage Viruses. Even though viruses are structurally simple, consisting of merely a n

Question 1, Which type of reproductive structure has a better chance of sur...

Which type of reproductive structure has a better chance of survival if there was a sudden temperature change in its environment? A.)asci B.)zygosporangium C.)basidium D.)lichen

Hemoglobin binds o2 cooperatively, Which of the following statements is cor...

Which of the following statements is correct? A. Hemoglobin binds O2 cooperatively, while myoglobin does not. B. Myoglobin binds O2 cooperatively, while hemoglobin does not.

Major information storage molecule, Following statement true for prokaryoti...

Following statement true for prokaryotic or eukaryotic? They use deoxyribonucleic acid as their major information storage molecule.

Marine extremophiles, how to make a assignment on recent research on marine...

how to make a assignment on recent research on marine microbiology

Assessment of new born - purposes and precautions, Assessment of new born ...

Assessment of new born The main purposes are: i) To identify normal characteristics in the neonate ii) To identify existing abnormalities, ii any iii) To carry

Can you explain pentoses, Q. What are the pentoses? What are the vital role...

Q. What are the pentoses? What are the vital roles of pentoses in DNA and RNA molecules? Pentoses are carbohydrates whole of five carbons. The DNA molecule is made of a sequ

History of viruses, In the early days of microbiology, the disease producin...

In the early days of microbiology, the disease producing submicroscopic agents were termed as 'filterable viruses' because of their ability to pass through conventional filters whi

Can you explain vestibular system, Q. What is the vestibular system? How do...

Q. What is the vestibular system? How does it operate? The vestibular system is the part of the ear that participates in the regulation and control of the equilibrium of the bo

Chemical composition of chromatin, CHEMICA L COMPOSITION OF CHROMATIN ...

CHEMICA L COMPOSITION OF CHROMATIN Chromatin threads composed of DNA (31 %), RNA (2-5%) and proteins (Histon-36%, Non histon 28%). Histone and protamines are basic prote

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