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 is the difference between disaccharides, Q. What is the difference bet...

Q. What is the difference between disaccharides and monosaccharides? What are some examples of monosaccharides and of disaccharides that form them? Monosaccharides are simple m

Explain what is class osteichthyes , Explain what is Class Osteichthyes ? ...

Explain what is Class Osteichthyes ? Class Osteichthyes takes its name from the Greek root "osteo," referring to bone, and "ichthys," referring to fish. The bony fish have a sk

Vitamins, VI T AMINS   Made up of protein or fat. Vitamins r...

VI T AMINS   Made up of protein or fat. Vitamins required in minute quantity for normal metabolism and body functions. Vitamins are supposed to be vital amines

Signify the term - opercular gill, Signify the term - opercular gill. T...

Signify the term - opercular gill. The gill found in bony fish. Operculum is the outer covering of the gill. When it's drawn away from the body, it pulls water inside the bucca

Explain the term- pupil, Explain the term- PUPIL Pupil is  the  apertu...

Explain the term- PUPIL Pupil is  the  aperture in  centre of  the  iris diaphragm that regulates entry  of  light into the eye. Colour of  pupil  is  said  to be  black. Actu

Describe how many bones are there in human foot, Describe how many bones ar...

Describe how many bones are there in human foot The human foot is a great mechanical marvel. It has 26 bones, 29 joints, and 42, various ligaments, a sensitive and protective s

Explain the intracellular perfusion fluid, At 1 AM, a healthy squid giant a...

At 1 AM, a healthy squid giant axon is placed in a bath of normal squid physiological extracellular saline and is internally perfused with normal squid intracellular saline.

Zoology, General characters of phylum protozoa

General characters of phylum protozoa

In what ways is genomic imprinting similar to x-inactivation, Based on the ...

Based on the simplified two-gene model for eye colour, explain using genotypes how two blue-eyed parents could produce a brown-eyed child. In what ways is genomic imprinting sim

Botany, Suggest a mechanism that would allow a plant to grow better if it h...

Suggest a mechanism that would allow a plant to grow better if it had intermorph neighbors than if it had intramorph neighbors. Think about the degree of genetic similarity between

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