Disorders of the adrenal cortex, Biology

Assignment Help:

DISORDERS OF THE ADRENAL CORTEX -

(i)      ADDISON'S DISEASE: This disease is caused by the deficiency of mineralocorticoids and glucocorticoids. Its symptoms include low blood sugar, low plasma Na+, high K+ plasma, increased urinary Na+, nausea, vomiting, diarrhoea and a bronze-like pigmentation of skin.

(ii)     CUSHING'S SYNDROME. It is caused by excess of cortisol which may be due to a tumour of the adrenal cortex.

It is characterised by high blood sugar, appearance of sugar in the urine, rise in plasma Na+, fall in plasma K+, rise in blood volume, high blood pressure, obesity and wasting of muscles of thighs and pectoral and pelvic girdles.

(iii)    ALDOSTERONISM. Excessive production of aldosterone from an adrenal cortical tumour causes this disease. Its symptoms include a high plasma Na+, low plasma K+, rise in blood volume and high blood pressure.

(iv)     ADRENAL VIRILISM. Appearance of male characters in female is called virilism. Excessive production of male sexcorticoids (androgens) produces male secondary sexual characters like beard, moustache, hoarse voice in woman.

(v)      GYNAECOMASTIA. It is the development of enlarged mammary glands (breasts) in the males. It is due to excessive secretion of female sex hormones (oestrogens) in males. Decreased testosterone may also lead to gynaecomastia.


Related Discussions:- Disorders of the adrenal cortex

Role of government in health care provision, Role of Government in Health C...

Role of Government in Health Care Provision The government intervenes in the health sector with a general view of improving the health status of the people. In general governm

How different is growth according to the biotic potential, How different is...

How different is the growth according to the biotic potential of a viral population from the growth according to the biotic potential of a bacterial population? The growth cur

What are the major features of the meristematic cells, What are the major f...

What are the major features of the meristematic cells? And why do these cells need to have a high mitotic rate? The Meristematic cells have very thin cell walls, a well-central

Male reproductive disorders-absence of vesicular glands, Absence of vesicul...

Absence of vesicular glands In some bulls the vesicular glands are either absent or hypoplastic also sometimes accompanied by poorly developed ampullae. A characteristic sympt

Oil seed meals as source of limiting amino acids, Oil seed meals as source ...

Oil seed meals as source of limiting amino acids Generally ruminants are not perceived to have a requirement for essential amino acids as the rumen microbes can synthesis esse

Illustrate fundamental sexual life cycles, Q. What are the three fundamenta...

Q. What are the three fundamental sexual life cycles studied in Biology? Which of them corresponds to metagenesis? Which of them is the human life cycle? Sexual reproduction ma

Biological adaptation, Biological Adaptation These adaptations depend ...

Biological Adaptation These adaptations depend on the geology and basic fertility of the region and some of the mechanisms that are especially well developed in tropical rain

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