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

Define historical development of food processing, Define Historical Develop...

Define Historical Development of Food Processing? Food processing began thousands of years ago to help people keep food through the lean seasons. Several methods of preserving

Carbon paper leaf prints, Carbon paper leaf prints Cover the vein side ...

Carbon paper leaf prints Cover the vein side of a leaf with a very thin layer of lard or vaseline. Place the greased leaf vein side up on various layers of newspaper and cover

Pain receptors, What information does the pain receptor relay to the brain ...

What information does the pain receptor relay to the brain about stimuli below threshold

When aerobic cells carry out fermentation, Under which conditions do aerobi...

Under which conditions do aerobic cells carry out fermentation? Some cells that as a rule get energy from aerobic cellular respiration can carry out fermentation when oxygen is

Define effect of protein excess during pregnancy period, Define effect of P...

Define effect of Protein excess during pregnancy period? It is not advisable to recommend protein supplements. Reports in the literature indicate that high-protein supplements

Eugenics, Eugenics : This is the study of improvement of human races by app...

Eugenics : This is the study of improvement of human races by applying the genetic laws. In other words Eugenics is the bio-social movement & applied science that advocates the use

Development and differentiation of a flowering plant, Development and Diffe...

Development and Differentiation of a flowering plant The developmental phases of a flowering plant involve seed germination, vegetative growth, flowering, fruiting and senesce

Describe the complete transposition of great arteries, Describe the Complet...

Describe the Complete transposition of great arteries ? Lethal, relatively frequent malformation. Without treatment, it results in 30 per cent mortality within the first week o

Define the sequence-specific dna binding, Which of the following statements...

Which of the following statements regarding the interactions among sequence-specific DNA binding domains and their recognition sites is incorrect? A. Sequence-specific DNA bind

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