Pituitary disorders, Biology

Assignment Help:

PITUITARY DISORDERS -

(a) Pituitary Dwarfism. It is caused by the deficiency of growth hormones (GH) from childhood. It is characterised by small but well porportioned body and sexual immaturity. The dwarfs produced by the deficiency of growth hormone are different from those which are formed from the deficiency of thyroid hormone in having normal intelligence. (b) Gigantism. It is caused by excess of growth hormone from early age. It is characterised by large and well proportioned body. If size of pituitary gland increases, it affects (supresses) optic chiasma and ultimately affects vision.

(c) Acromegaly (Acro- extremity. megaly-Iarge). It is caused by excess of growth hormone after adult size is reached. It is characterised by disproportionate increase in size of bones of face, hands and feet.

(d) Kyphosis - In old age by extra secretion of GH.

(e) Diabetes insipidus. It is caused by the deficiency of ADH. It is characterised by excessive excretion of dilute urine.


Related Discussions:- Pituitary disorders

Explain the absorption, Explain the Absorption, Storage and Elimination of ...

Explain the Absorption, Storage and Elimination of Folate? Folic acid is readily absorbed from the small intestines through the portal vein and  passed onto the tissues throug

Explain the transport of amino acids, Explain the Transport of Amino Acids?...

Explain the Transport of Amino Acids? More than one transport or carrier system functions in the absorption of amino acids. The active carrier system for neutral amino acids sh

Pyramid of biomass - ecological pyramids, Pyramid of Biomass - Ecological P...

Pyramid of Biomass - Ecological Pyramids The pyramid of numbers is not a very good method to use if the organisms at different trophic levels are of greatly differing sizes. T

Determine the digestion of carbohydrates, How does the pancreatic juice res...

How does the pancreatic juice resume the digestion of carbohydrates? What is the involved enzyme? Carbohydrate digestion starts with the action of the salivary amylase (ptyalin

What type of compound is major metabolic waste of porifera, What type of co...

What type of compound is the major metabolic waste of Porifera? Why is it important for the organism to get rid of this compound?

Explain the concepts of food chain and food web, What is the difference bet...

What is the difference between the concepts of food chain and food web? The chain method is a theoretical model to study the energy flux in ecosystems. Actually in an ecosystem

Isomerisms types of unsaturated fatty acids, Unsaturated fatty acids show ...

Unsaturated fatty acids show different types of  isomerisms. We have already learnt about the.concept of  isomerism  in  the  last unit. You would  realize that fatty acids with s

What are the major parts of ferns, Q. What are the major parts of ferns? ...

Q. What are the major parts of ferns? Ferns are constituted by small roots that come downwards from the rhizome stem and often horizontalized. The fronds also arise from the rh

Explain idal volume and expiratory reserve volume, Explain the following an...

Explain the following and give their values in a normal human adult: a) Tidal volume b) Expiratory reserve volume c) Inspiratory capacity.

Determine dominant individual fromhomozygous or heterozygous, Why can cross...

Why can crossing of an individual that manifests dominant phenotype with another that manifests recessive phenotype (for the same trait) determine whether the dominant individual i

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