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

Determine the significance of siphuncle., Determine the significance of Sip...

Determine the significance of Siphuncle. A cord of tissue that passes between different chambers of a Nautilid shell. Siphuncle regulates the amount of air or fluid in chambers

Alkaline indigestion, A lk a l in e indigestion The disease occurs...

A lk a l in e indigestion The disease occurs due to the consumption of excessive amount of protein rich concentrate or non protein nitrogenous substance like urea, and is

How do you define normal pulmonary vasculature, Q. How do you define Normal...

Q. How do you define Normal Pulmonary Vasculature? Pulmonary vessels are seen in the medial 2/3 of the lung. Vessels are generally not identified in the lateral third. The rad

Which series of enzymes in order convert citrate, Within the cytosol which ...

Within the cytosol which series of enzymes in order convert citrate back into pyruvate: -citrate lyase, malate dehydrogenase, malic enzyme - citrate synthase malate dehydroge

Third week - embryonic development, Third Week - Embryonic Development ...

Third Week - Embryonic Development Throughout the third week of development the ICM separates from the uophoblast and forms the flattened embryonic disc, which at first consi

How age factors affecting the calcium absorption, How Age factors Affecting...

How Age factors Affecting the calcium absorption? Age is another factor which influences the absorption of calcium. Fractional absorption of calcium is highest in infancy i.e.,

History of Microbiology, Can you explain about microbiology? http://www.e...

Can you explain about microbiology? http://www.expertsmind.com/sample-assignment/sample-biology-homework.pdf

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