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

Define determinants of food security - food availability, Define Determinan...

Define Determinants of Food Security - Food Availability? It depends on the quantum and quality of crops, livestock, fishery and other food sources, as well as commercial impor

Population density - biological stress, Population Density - Biological Str...

Population Density - Biological Stress You are aware of what might follow an uncontrolled growth of human population. There will be competition for common consumables and for

Determine the production of red blood cells, What is the substance that sti...

What is the substance that stimulates the production of red blood cells? Which is the organ that secretes it? Under what conditions does this secretion increase? The substance

Strategies for genetic characterization and conservation, Strategies for ge...

Strategies for genetic characterization and conservation - During last 20 years concerted efforts have been made to create awareness among all the developmental organizations in th

What are the main negative ions found in living beings, What are the main n...

What are the main negative ions found in living beings? The major anions found in living beings are the chlorine anion (Cl-), the phosphate anion (PO4--), the bicarbonate anion

Alfieri repair-technique of operation, Alfieri Repair: This is advised ...

Alfieri Repair: This is advised for ischaenlic mitral regurgitation. In the area of prolapse, the anterior and posterior leaflet edges are approximated with one or two mattress

How does the intensity of facilitated diffusion differ, Q. How does the int...

Q. How does the intensity of facilitated diffusion differ in relation to the concentration of the moved substance? What is limiting factor? Like simple diffusion facilitated di

Transported soils-types of soils, Transported Soils These soils are for...

Transported Soils These soils are formed from the weathered material which is transported and deposited away from the site of origin. Depending upon the nature of the transport

Canine distemper, Canine distemper Canine distemper, a highly contagio...

Canine distemper Canine distemper, a highly contagious disease of dogs, is caused primarily by air- borne virus which belongs to the genus Morbillivirus in family Paramyxoviri

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