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

Sinece, modes of nutrition in animals?

modes of nutrition in animals?

Newcastle disease / ranikhet disease (nd/rd), N e wcastle disease / Ranik...

N e wcastle disease / Ranikhet disease (ND/RD) This disease is caused by Newcastle disease virus (NDV) belonging to the genus Paramyxovirus of the family Paramyxoviridae. Alo

Nutritional management of food allergies & food intolerance, Define Nutriti...

Define Nutritional Management of Food Allergies and Food intolerance? In this unit we will be discussing the adverse reactions associated with food. You may have read or heard

Autonomic nervous system, A.N.S. (Autonimic Nervous System) Name given ...

A.N.S. (Autonimic Nervous System) Name given by Langley . Controled by Hypothelamus. Partially independent system. Controls involuntary actions as heart beat, breathing,

Define management & prognosis of root perforation, Define Factors Affect Ma...

Define Factors Affect Management and Prognosis of Root Perforation Time Location of defect in relation of crestal bone Level of perforation Size Periodo

Define st elevation in avr, Q. Define ST Elevation in aVR? Lead aVR oft...

Q. Define ST Elevation in aVR? Lead aVR often develops ST elevation as a reciprocal of ST depression in lead V2 to V6 or leads 2 and 3. It may occasionally show ST elevation in

Australopithecines, The first ever australopithecine fossil was found in 19...

The first ever australopithecine fossil was found in 1924 at Taung, South Africa. It was the skull of a 6 year old child showing a mixture of human and ape like features. This a

Determine about the adequacy of children''s food, Determine the Adequacy of...

Determine the Adequacy of children's food? Adequacy of children's food and nutrient intake depends on: Sibling company Peer pressure Model set by parents and

Diabetic foot are impaired blood supply to foot, Diabetic foot are impaired...

Diabetic foot are impaired blood supply to foot Diabetic foot are impaired blood supply to foot i.e. vasculopathy. This leads to ischaemia which in turn leads to delayed or non

Define procedure for detection of chalk in flour, Define Procedure for Dete...

Define Procedure for Detection of Chalk in Flour Carry out the experiment following the procedure given herewith: 1. Take a teaspoon of flour in a test tube and shake it wit

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