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

What is the life cycle of plasmodium vivax, Q. What is the life cycle of Pl...

Q. What is the life cycle of Plasmodium vivax? The vector mosquito bites a infected person and ingests female and male gametocytes of the parasite. Within the insect gut the ga

Animals in the community - nature of community, Animals in the Community - ...

Animals in the Community - Nature and Structure of Community The animals in the community are directly or indirectly dependent on the plants also time their activities in such

Zoology, Wheel organ of amphioxus.

Wheel organ of amphioxus.

Circulatory system, Circulatio n I n  Animal Circulation is served ...

Circulatio n I n  Animal Circulation is served by a fluid as blood/ lymph that circulates through the body in a regular manner, receiving & distributing materials in the wa

Find the magnitude of the acceleration of the proton, A proton accelerates ...

A proton accelerates from rest in a uniform electric field of 650 N/C. At some later time, its speed is 1.3 106 m/s. (a) Find the magnitude of the acceleration of the proton. m/s2

Osmosis, If you have water, 10% sucrose, and 40% sucrose solution. Which so...

If you have water, 10% sucrose, and 40% sucrose solution. Which solutions were isotonic to each other?

Why phylogenies using maximum likelihood methods, When constructing phyloge...

When constructing phylogenies using maximum likelihood methods, you assume?

How does the body defend itself from microorganisms, Q. How does the body d...

Q. How does the body defend itself from microorganisms and other harmful substances that enter the airway during the breathing process? The epithelium of the airway is a ciliat

Describe the effects of insulin on carbohydrate metabolism, Q. Describe the...

Q. Describe the effects of insulin on carbohydrate metabolism? Insulin promotes muscle glucose uptake and metabolism. In presence of insulin muscle cells take up glucose and us

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