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

What essential function do they serve, Why do membranes figure so prominent...

Why do membranes figure so prominently in eukaryotic cells? What essential function do they serve?

Angiographic findings and interpretation, Q. Angiographic Findings and Inte...

Q. Angiographic Findings and Interpretation? Pulmonary angiography is useful in the following clinical scenarios: 1) Pulmonary artery stenosis 2) Pulmonary arteriovenous

Soil texture and structure, SOIL TEXTURE AND STRUCTURE We have seen that ...

SOIL TEXTURE AND STRUCTURE We have seen that soils are predominantly composed of particles of various sizes derived from the disintegration or decomposition of parent rock materi

Define freeze concentration, Define Freeze Concentration? This process ...

Define Freeze Concentration? This process has been known for many years and has been applied commercially to orange juice. However, high processing costs due largely to losses

Stem - plant growth substances, Stem - Plant Growth Substances The rol...

Stem - Plant Growth Substances The role of auxins, cytokinins, ethylene and abscisic acid in controlling the apical bud dominance and lateral bud dormancy (Apical Dominance) a

Tracheostomy care, Tracheostomy Care A tracheostomy is an external ope...

Tracheostomy Care A tracheostomy is an external opening made into the trachea in order to provide an artificial airway (an opening is made in the 2nd and 3rd or 4th trach

Protozoa, the function of contractil vacuole

the function of contractil vacuole

Run off-water cycle, Run off Some of the rainfall is soaked into the so...

Run off Some of the rainfall is soaked into the soil and excess water flows over the land surface along the natural slope of the area. Run off is the main source of water for l

What is the menstrual cycle, What is the menstrual cycle? The menstrual...

What is the menstrual cycle? The menstrual cycle is the periodic succession of interactions among hormones and the organs of the female reproductive system that, after the star

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