Endocrine system, Biology

Assignment Help:

INTRODUCTION -

Endocrinology - Study of endocrine glands, hormones and their effects.

Thomas Addison - Father of endocrinology. Described hormonal disease in 1855 known after his name as Addison's disease.

Berthold - Laid foundation of endocrinology.

Huxley called hormones as chemical messengers.

Claude Bernard called hormones a internal secretions.

Gudernatsch studied effect of thyroxine on metamorphosis of tadpole larva of frog.

Kendall prepared crystals of thyroxine.

Banting and Best isolated insulin.

Kimbell and Murlin isolated glucagon.

Karlson and Butendant coined the term pheromones.

Origin - Endocrine glands are mostly endodermal. Adrenal gland has ectodermal medulla and mesodermal cortex. In pituitary gland neurohypophysis is ectodermal while the anterior and middle lobes are endodermal. Pineal gland and hypothalamus are ectodermal.


Related Discussions:- Endocrine system

Choline, CHOLINE Found in egg liver & kidney. Synthesized in body...

CHOLINE Found in egg liver & kidney. Synthesized in body with acetyle coA. It forms acetylcholine. Deficiency causes damage to kidney.

What is primary structure of a protein, Q. What is primary structure of a p...

Q. What is primary structure of a protein? What is the significance of the primary structure? The primary protein structure is the linear sequence of amino acids that outline t

Ethylene - apical dominance, Ethylene - Apical Dominance Ethylene also...

Ethylene - Apical Dominance Ethylene also plays a role in the inhibition of lateral bud growth. It is present in those tissues like shoot apex where auxins are also present. I

Polyembryony, what are the types of polyembryony?

what are the types of polyembryony?

Which type of gamete do the male respectively produce, Concerning the sex c...

Concerning the sex chromosomes of the XY system which type of gamete do the male and the female individuals respectively produce? The individual of the male sex is XY so he for

Explain the diarrhoeal management strategies, Explain the Diarrhoeal Manage...

Explain the Diarrhoeal Management Strategies? The diarrhoeal management strategies have had a major impact on less than 5 mortality rate. The distribution of ORS packets and ne

Explain functional property of foaming, Normal 0 false false ...

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

Management of constipation, Q. Management of Constipation? You must hav...

Q. Management of Constipation? You must have realized by now that proper dietary and lifestyle management can help in maintaining the normal bowel movements to a great extent.

Rate related bundle branch block, Q. Rate Related Bundle Branch Block? ...

Q. Rate Related Bundle Branch Block? The term has often implied the absence of significant coronary or myocardial pathology. It cannot be judged without taking the total clinic

Human activity lead to the extinction of a species, In what ways could huma...

In what ways could human activity lead to the extinction of a species in an area? Human activity could lead to extinction of a species by (a) over-hunting, e.g. elephants, rhin

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