Define goitre - thyroid gland, Science

Assignment Help:

Define Goitre - Thyroid Gland

Goitre or the enlargement of thyroid gland is one of the critical manifestations of iodine deficiency. Iodine, as you must have realized by now, is an important micronutrient required by our body for the formation of thyroid hormone production. Only small amount, 1 mg per week is necessary for the formation of tri-iodothyroxine and thyroxine. If due to lack of iodine in water or soil or due to any reason, even this small amount of iodine is not supplied, goitre or enlargement of thyroid gland results.

The actual swelling of the gland is due to the accumulation of colloid in the acini. Sometimes, it could be possible that inspite of adequate iodine intake, there is a deficiency of iodine in our body. Now how does that happens? The answer to this is the presence of certain anti-thyroid substances in the body. What are these 'anti-thyroid substances'? Well, anti-thyroid substances are those substances that suppress the thyroid activity. Thiocyanate and propylthiouracil are examples. Thiocyanate reduces the rate of uptake of iodine by thyroid cells. Propylthiouracil prevents die formation of thyroid hormones. These, along with other anti-thyroid drugs, can be used for the treatment of hyperthyroidism. Hence, by maintaining BMR, normal functioning of thyroid is essential to remain in a balanced state of metabolism.


Related Discussions:- Define goitre - thyroid gland

Chain reaction, Chain Reaction: When the atomic nucleus splits, it not ...

Chain Reaction: When the atomic nucleus splits, it not only gives off energy, but also throws out two or three more  neutrons.  'These new neutrons can,  in turn,  split two or

Explain enzyme immobilization, Enzyme immobilizatio:- The attachment of...

Enzyme immobilizatio:- The attachment of an enzyme to a solid matrix so  that it cannot escape but can still act on its substrate.  .

Determine the most important soil animals, Explain why earthworms are said ...

Explain why earthworms are said to be the most important soil animals. Earthworms ingest organic matter as well as soil where they mix, granulate and excrete to increase stabil

Explain thiamin (vitamin b1), Thiamin (vitamin B1) Thiamin was  first  ...

Thiamin (vitamin B1) Thiamin was  first  isolated  in  1926 from rice polishing by  Jansen  and Donath.  Its empirical formula was established  in  1931  by  Windaus  and  co-w

Explain the function of nose, Explain the Function of Nose You would ag...

Explain the Function of Nose You would agree that one of the most prominent features of the face is the nose. The nose is the first of the respiratory organs through which we r

Resource maps, Types of Resource Maps: Generally,  several  types of ...

Types of Resource Maps: Generally,  several  types of maps, based on the type of.resburces,  are prepared. Some of these are: Soil Maps showing the types of  soil, their comp

Explain the process of leaching- temperature, Explain the process of leachi...

Explain the process of leaching- Temperature High temperatures hinder the process of leaching and cause an upward movement of soluble salts.  Wherever, moisture conditions are

Define the lymphocytes, Define the Lymphocytes They are agranulocytes. ...

Define the Lymphocytes They are agranulocytes. The nucleus occupies approximately the entire cell. They vary in size from 6- 18 mm diameter; sometimes divide in small and large

Opening the airway for unconscious casualties, Opening the Airway If a ...

Opening the Airway If a casualty has stopped breathing, first of all we should clear the airway of the victim, so that he/she could inhale fresh air. The procedure is as follow

Which is not likely to have been formed by glaciers, Which substance is NOT...

Which substance is NOT likely to have been formed by glaciers: dike

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