Relation between the hypophysis and the thyroid, Biology

Assignment Help:

Q. What is the relation between the hypophysis and the thyroid?

The hypophysis secretes TSH (thyroid- stimulating hormone). This hormone hastens the secretion of thyroid hormones (thyroxine and triiodothyronine, or T4and T3).

When the plasma concentration of thyroid hormones is high this information is detected by the hypophysis and by the hypothalamus and this gland reduces the TSH secretion. When the thyroid hormone levels are low the TSH secretion increases it is thus a negative feedback.

Injuries of the hypophysis that cause TSH hyposecretion for instance in case of tissue destruction or hypersecretion in case for example, cancer or excessive cell proliferation, be able to change the functioning of the thyroid gland completely.


Related Discussions:- Relation between the hypophysis and the thyroid

Explain fungi - nutritional types of microorganisms, Explain Fungi - Nutrit...

Explain Fungi - Nutritional Types of Microorganisms? Fungi are filamentous, eukaryotic microorganisms, ubiquitous in nature. These grow best in dark and moist habitats. Their h

Meaning of diabetes self management education, Q. Meaning of Diabetes Self ...

Q. Meaning of Diabetes Self Management Education? You have learned that the treatment of diabetes depends upon the cooperation of the patient and also on how actively a patient

Zoonoses disease-poxvirus zoonoses, Poxvirus zoonoses Naturally occurring ...

Poxvirus zoonoses Naturally occurring poxvirus infections affect humans and many species of animals and insects. However, for most part, poxviruses other than variola cause self-l

What are the communication process steps, Q. What are the Communication pro...

Q. What are the Communication process steps?Communication process steps: 1. Rapport Building 2. Finding the Problem 3. Planning 4. Implementation of the Plan 5. Ter

Define the interaction of vitamin c with iron, Define the Interaction of Vi...

Define the Interaction of Vitamin C with iron? Ascorbic acid powerfully enhances absorption of non- haem iron and reverses the inhibiting effect of tea and calcium phosphate. I

Do algae reproduce sexually or asexually, Do algae reproduce sexually or as...

Do algae reproduce sexually or asexually? There are algae that replicate sexually and there are algae that replicate asexually. In unicellular algae reproduction is usually

Explain about human sperm, Which one of the following statements about huma...

Which one of the following statements about human sperm is correct? 1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilis

What are fossil fuels, What are fossil fuels? Fossil fuels, like oil, g...

What are fossil fuels? Fossil fuels, like oil, gas and coal, form when organic material is preserved from the complete action of decomposers, generally buried deep and under pr

What is bicuspid aortic, What is bicuspid aortic? Bicuspid aortic val...

What is bicuspid aortic? Bicuspid aortic valve is the most common form of CHD seen in adults. Isolated bicuspid aortic valves may be stenotic or non-stenotic to start with. T

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