Disorders of pituitary function, Biology

Assignment Help:

Disorders of Pituitary Function:

The disorders of pituitary function result  in following conditions. 

Hypopituitarism: Growth Hormone  (GH) Deficiency Hypopituitarism is primarily a disorder associated with deficient secretion of GH (somatropin).  

It may be caused by  a  variety of  conditions which may  include developmental defects, destructive lesions such as tumors, trauma, vascular abnormalities, or  surgery, certain hereditary  disorders, or  functional disorders such as anorexia nervosa  or  psychosocial dwarfism.  In more  than half  of children with hypopituitarism, no lesion is evident  and  the cause is unknown- idiopathic hypopituitarism or  idiopathic pituitary growth failure. The children with hypopituitarism may  be normal at  birth but  later during  infancy  there is deviation in growth from normal growth  rate. Treatment consists of  replacement of  growth hormone  and  in  cases where cause  is due  to organic lesion  then surgical  removal of  lesion is done.  

Pituitary Hyperfunction

If  the  excess of  Growth Hormone  (GH) occurs  prior  to closure  of  the epiphysieal shafts  it  results in proportional overgrowth of  long bones until the individual reaches  a  height of  8 feet or more. There  is  rapid  and  increased development of muscles and viscera along with vertical growth. Weight  is increased but  is usually  in  proportion  to height. Also there is proportional enlargement  of head  circumference which may result in delayed closure of  the fontanels. Children with  a  pituitary-secreting tumor may  also demonstrate signs of  increased intracranial pressure, especially headache. If hypersecretion of  GH occurs after epiphyseal closure, growth takes place in the transverse direction, producing  a condition known as acromegaly.


Related Discussions:- Disorders of pituitary function

Gastrulation in amphibians, Gastrulation in Amphibians Amphibians com...

Gastrulation in Amphibians Amphibians comprise a large and moderately telolecithal egg. Cleavage is holoblastic and unequal generating a spherical blastula along with a reduc

Explain in detail about gene therapy, Explain in detail about Gene therapy ...

Explain in detail about Gene therapy Gene therapy technology as a whole has yet to be proven and it's meeting a number of stumbling blocks, so may have little impact (low succe

Cnidarians: obelia, why is obelia considered to be of special interest in Z...

why is obelia considered to be of special interest in Zoology as an animal showing an intermediate grade of organisation

Regulation of ovarian activity, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Explain micronutrient deficiencies during kwashiorkor, Explain Micronutrien...

Explain Micronutrient deficiencies during kwashiorkor? Almost all the children manifest anaemia (due to iron deficiency) of some degree. Eye signs of vitamin A' deficiency are

Explain the stage of the cardiac cycle, Q. What is the stage of the cardiac...

Q. What is the stage of the cardiac cycle during which the ventricles are filled? The filling of the ventricles with blood take place during diastole.

Echinococcosis (hydatidosis), Echinococcosis (hydatidosis) Echinococco...

Echinococcosis (hydatidosis) Echinococcosis, also called hydatidosis, is a global problem particularly in countries where sheep and cattle raising forms the major animal husba

How far from the building should the fire hose be located, A fire hose ejec...

A fire hose ejects a stream of water at an angle of 38.8 ° above the horizontal. The water leaves the nozzle with a speed of 26.6 m/s. Assuming that the water behaves like a projec

Making leaf collections, Making leaf collections Collect young leaves o...

Making leaf collections Collect young leaves of as many varieties of plants as possible. Place various layers of news- paper or blotting paper on a firm, smooth board. Next org

Molybdenum and vanadium, Molybdenum and Vanadium - Inorganic Nitrogen and S...

Molybdenum and Vanadium - Inorganic Nitrogen and Sulphur Metabolism Molybdenum must be available in nature in order to meet the demand of Mo for the formation of nitrogenase n

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