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

Identify the enzymes utilization in cheese production, Cheese Production ...

Cheese Production Cheese production involves the conversion of the milk protein, k-casein to paracasein by a defined, limited hydrolysis, catalysed by chymosin (rennin). In the

Define the intradermal dye test, Define the Intradermal Dye Test? The r...

Define the Intradermal Dye Test? The rate of decolouration of a small quantity of the dye, 2, 6- dichlorophenol injected intradermaly is an index of the ascorbic acid nutrition

Protozoa, what are characteristics of protozoa?

what are characteristics of protozoa?

Name the hormones produced by the testes, Name the hormones produced by ...

Name the hormones produced by (a) the testes, (b) the ovaries.   (a) The testes produce testosterone. (b) The ovaries produce oestrogen and progesterone.

Efficiency of feed utilization on complete feeds, Efficiency of feed utiliz...

Efficiency of feed utilization on complete feeds The complete diet concept is based on group rather than individual feeding and usually involves much fewer changes in diet for

What is the use of uristix, What is the Use of Uristix There are some e...

What is the Use of Uristix There are some enzymatic products and reagents impregnated on paper or plastic strips and dipping them in urine provide the results in less time comp

Hypothesis - nursing research, Hypothesis: The  spelling of hypothesis...

Hypothesis: The  spelling of hypothesis when written  as  "hypotheses"  indicate plural. The hypothesis is a statement or declaration of  the expected outcome of a research st

Define transverse section of body of male ascaris, Define Transverse sectio...

Define Transverse section of body of male Ascaris? 1. Body wall consists of the following: (a) Cuticle is the outermost layer. It is a thick, tough, elastic membrane

Acid rain, what are the two main pollutants that contribute to acid rain

what are the two main pollutants that contribute to acid rain

Carbohydrate required for underweight - nutritional care, Explain the Carbo...

Explain the Carbohydrate required for underweight - Nutritional Care? Liberal amounts of easy to digest carbohydrates should be included in the diet. The intake of dietary fibr

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