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 primary consumers, What are primary consumers? Can a food chain pr...

What are primary consumers? Can a food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secon

Types of variations, Types of Variations - Somatogenic and Blastogenic...

Types of Variations - Somatogenic and Blastogenic Variation Changes in somatic parts of the body are somatic variations e.g. wrestler's muscle, circumcised penis of mus

What does acute disease mean, What does acute disease mean? An sharp di...

What does acute disease mean? An sharp disease is which does not last for a longer duration n has no weakness in the body

Explain the glass test tubes - food microbiology, Explain the Glass Test Tu...

Explain the Glass Test Tubes - Food Microbiology Sterile glass tubes are used for culturing microorganisms in liquid or solid media. Sterility in tubes is maintained by using c

DEVELOPMENTAL BIOLOGY, DIFFERENCE BETWEEN VEGETATIVE AND GENERATIVE CELL

DIFFERENCE BETWEEN VEGETATIVE AND GENERATIVE CELL

How stomata position changes in some plant, How has the position of the sto...

How has the position of the stomata changed in some plants to prevent excessive water loss by transpiration? In the some plants that have leaves that receive too much sunlight

Hemoconcentration, Hemoconcentration Before, during and after CPB, hem...

Hemoconcentration Before, during and after CPB, hemoconcentration allows the patient's blood to be salvaged during surgery to help reduce the need for donor blood. Ultra

Types of radiography, Types of Radiography: Positron Emission Tomogra...

Types of Radiography: Positron Emission Tomography  (PET) Uses high-energy physics and computer techniques to  study  lung function; useful for quantitative measurement

Comparison between metamorphosis in amphibians and insects, Comparison betw...

Comparison between Metamorphosis in Amphibians and Insects You may have realized that the metamorphic process in amphibians and insects show certain fundamental similarity. M

Define the effect of dietary fibre on satiety, Define the effect of Dietary...

Define the effect of Dietary fibre on Satiety? Satiety: Several investigators have speculated that ingestion of a high fibre food induces a feeling of satiety, reduces meal siz

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