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

Introduction to parthenogenesis, Parthenogenesis The development of egg...

Parthenogenesis The development of egg to form an animal without fertilization is called as parthnogenesis. Parthenogenesis was discovered by Charles Bonnet in the egg of se

Which are nucleotides portions, Q. Which are nucleotides "portions" that to...

Q. Which are nucleotides "portions" that to bind in the formation of nucleic acids? What is meant by the 5' and 3' extremities of the nucleic acids? The phosphate group of one

Development of heart in amphibians, Development of Heart in Amphibians ...

Development of Heart in Amphibians The heart and the surrounding pericardial cavity build up from lateral mesoderm. After gastrulation, the mesodermal mantles carry on to gro

What are the presumed target substrates, What are some of the presumed targ...

What are some of the presumed target substrates for cyclin-dependent kinases?

What are the hydrophobic molecules, Q. What are the hydrophobic molecules (...

Q. What are the hydrophobic molecules (or hydrophobic molecular regions)? What are the hydrophilic molecules? How can they be characterized in relation to their polarity? Hydro

Abscisic acid, Abscisic Acid Abscisic acid (ABA) as a naturally occurr...

Abscisic Acid Abscisic acid (ABA) as a naturally occurring growth inhibitor was discovered through independent investigations of different physiological phenomena in two diffe

Define equilibrium between two solid phases and a gas phase, Define Equilib...

Define Equilibrium between two solid phases and a gas phase? Consider the following reaction equilibrium: 3 CuO(s) + 2NH 3 (g) ↔ 3 Cu(s) + 3H 2 O (g) + N 2 (g) Accordin

Requirements of glutamine in diverticular disease, Q. Requirements of Gluta...

Q. Requirements of Glutamine in diverticular disease? Glutamine: Wile specific nutrients that may have an impact on diverticula disease have not been studied as thoroughly as t

The basics of dna cloning, There  are a broad  range  of various  process  ...

There  are a broad  range  of various  process  for cloning  DNA  into  either viral  or plasmid vectors  but the basic  scheme  of events  is frequently  same.  To clone into a pl

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