Thymus, Biology

Assignment Help:

THYMUS -

It is derived from the endoderm of the embryo.

Structure. The thymus gland is located in the upper part of the thorax near the heart. It is a soft, pinkish, bilobed mass of lymphoid tissue. It is a prominent gland at the time of birth but it gradually atrophies In the adult.

Hassall's corpuscles are spherical or oval bodies present in the thymus. They are phagocytic in function.

Hormone. Thymus secretes a hormone named thymosin which stimulates the development of certain kinds of white blood cells involved in producing immunity. It also hastens attainment of sexual maturity.

Thymosin hormone stimulates the lymphocytes to destroy the antigens produced by bacteria or pathogen. It self may be destroyed by these lymphocytes.


Related Discussions:- Thymus

What are the differentiations of the cell membrane, Q. What are the differe...

Q. What are the differentiations of the cell membrane? In some kind of cells, the cell membrane presents differentiations that are necessary for the specific functions of the c

Relate the oxide layer and biocompatibility of titanium, Relate the oxide l...

Relate the oxide layer and biocompatibility of titanium. The compatibility of a metal with its host environment depends on its resistance to biodegradation and on the degree of

Venting of the heart in myocardial protection, Venting of the Heart :  It ...

Venting of the Heart :  It is important that heart does not distend during cardio pulmonary bypass. This is prevented by venting of the left side of the heart by inserting a cannu

Radiolarians, In the living condition (found in sea) you would be able to o...

In the living condition (found in sea) you would be able to observe the following features in radiolarians: The cytoplasm is divided by a perforated and chitinous metnbrane into

Point and non-point sources, Point and Non-Point Sources The discharg...

Point and Non-Point Sources The discharge of effluents in receiving water body at a specific site are referred to a point sources in contrast to the inflow of pollutants in a

Prevention of malaria, Prevention of malaria No drug for malaria preven...

Prevention of malaria No drug for malaria prevention is 100% effective. Travelers to countries that have malaria should seek prompt medical attention for febrile illness wherea

What are pioneer species, Q. What are pioneer species? What is the role of ...

Q. What are pioneer species? What is the role of the pioneer species? The Pioneer species are those first species that colonize places where previously there were no living bei

Why it have been so difficult for radially symmetrical, Unlike bilaterally ...

Unlike bilaterally symmetrical animals, radially symmetrical animals are almost never able to move themselves from place to place. Why might it have been so difficult for radially

State the designations for horizons, State the Designations for Horizons  ...

State the Designations for Horizons  Of the several horizons, the master horizons are the results of the fundamental soil forming processes, viz. humification, eluviation  and

Difference between ribosome and plant virus, Difference between Ribosome an...

Difference between Ribosome and plant virus -   RIBOSOME (RNA + Protein)   PLANT VIRUS (RNA + Protein)   1. Does not mul

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