Compensatory hypertrophy, Biology

Assignment Help:

Compensatory Hypertrophy

It has been seen that the exact replacement of a part or organ or tissue is not the just only way to regenerate in animals so many of the body's internal organs compensate for their loss by enlarging what remains, in place of re-growing the missing part Figure. This process, called compensatory hypertrophy, is feasible as the remaining mass is usually as good as that which was lost. Liver regeneration in mammals is a well documented instance of this process, where the size of the residual lobes expand, so restoring the original mass of hepatic tissues as well as its function.

667_Compensatory Hypertrophy.png

Figure: Comparison between qualitative and quantitative modes of regeneration. Some structures are replaced in situ by morphological regeneration. Others are not re-grown but their residual portion enlarges by compensatory hypertrophy.

Compensatory hypertrophy in liver is accompanied through hyperplasia of its cells and of the histological functional units into which they are organized. Identical mechanisms have been noted in many endocrine and exocrine glands following surgery or physiological insufficiency. Pancreas, thyroid, adrenals and ovaries are another organs that regenerate by compensatory hypertrophy. The way they compensate for such loss is similar way they grow during ontogeny. However, not all organs are capable to multiply their functional units in such a way. Nerves, muscles, lungs and kidney are unable to do so.


Related Discussions:- Compensatory hypertrophy

Cytogenetics, describe five features of chromosomes used in cytogenetic ana...

describe five features of chromosomes used in cytogenetic analysis?

Discuss how would you perform antiglobulin test, Question 1 Discuss how wo...

Question 1 Discuss how would you perform antiglobulin test? Add a note on it clinical importance. What are the precautions to be taken while performing the test? Question 2 E

Discuss about troponin receptor site, Skeletal muscle A. The myosin hea...

Skeletal muscle A. The myosin head is activated (energized) by the conversion of GTP (that is bound to myosin) to GDP and Pi (that are bound to myosin). B. Detachment of the

How do you verify that a certain gene encodes a certain prot, For homework,...

For homework, I had to prove that a certain catalyst was a protein, then tell how I would purify the protein, then tell how I would clone a human chromosomal region that contains t

What are the diagnostic models, Diagnostic Models Study models made fro...

Diagnostic Models Study models made from impressions of the arches are invaluable for diagnosis and treatment planning. The model must be mounted on an adjustable or semi adjus

What are the steroids, Q. What are the steroids? What are the few examples ...

Q. What are the steroids? What are the few examples of steroids with a biological function? Steroids are lipids based in an angular combination of four carbon rings, one ring m

Types of surgery-pulmonary regurgitation, Types of Surgery :  Pulmonary va...

Types of Surgery :  Pulmonary valve replacement using pulmonary or aortic allograft is the procedure of choice. It increases R.V. ejection fraction, decreases R.V. end diastolic p

Explain counter stain - ziehl-neelsen method, Explain Counter Stain - Ziehl...

Explain Counter Stain - Ziehl-Neelsen Method? Methylene blue is used to stain previously decolourized cells. All non acid-fast bacteria de-stained by acid alcohol now absorbs c

Atrial fibrillation or flutter, Q. Atrial Fibrillation or Flutter? Tran...

Q. Atrial Fibrillation or Flutter? Transient atrial fibrillation or flutter is seen frequently and can be associated with CAD, rheumatic heart disease, thyrotoxicosis, or myoc

Chlamydiosis-pathogenesis, Pathogenesis The mode of intracellular repl...

Pathogenesis The mode of intracellular replication of chlamydial agents is investigated morphologically and cytochemically with both light and electron microscope. It is estab

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