Thymus gland, Biology

Assignment Help:

THYMUS GLAND

  1. Flat, bilobed gland located in the mediastinal space in front of heart.
  2. Well developed in new born child and grows upto puberty but starts degenerating thereafter at 25 years of age, it disappears.
  3. Parenchyma contains numerous lymphocytes undergoing proliferation and maturation forming different types of T- Iymphocytes which later migrate to spleen, lymph nodes, Peyer's patches etc. and remain stored there or some are also retained in circulating blood.
  4. Secretes a hormone, thymosin, which activates lymphocytes.

Related Discussions:- Thymus gland

Neuropsychological understanding of behavioural deficits, Neuropsychologica...

Neuropsychological understanding of behavioural deficits Behaviour is an outcome of the interaction of the brain with the environment. A composite of multiple psychological pro

How are ecological interactions classified, Q. How are ecological interacti...

Q. How are ecological interactions classified? Ecological interactions are classified as interspecific or intraspecific interactions and as harmonious or inharmonious interacti

Pedigree charts, i need help with to do a pedigree charts.

i need help with to do a pedigree charts.

What are the valves of the venous system, What are the valves of the venous...

What are the valves of the venous system? What is their function? The valves of the venous system are structures within the veins that permit blood to flow only in the normal w

Explain reversion flavor, Reversion flavor:  The rapid oxidation of br...

Reversion flavor:  The rapid oxidation of branched furan fatty acids on exposure to light, leads to the production of an intensive aromatic substance, which along with diacety

Define the principle behind cyanmethemoglobin method, Define the Principle ...

Define the Principle behind Cyanmethemoglobin Method? The principle behind the cyanmethemoglobin method is as follow: Principle The haemoglobin is treated with a reagent con

Define diagnostic criteria for anorexia nervosa, Define Diagnostic Criteria...

Define Diagnostic Criteria for Anorexia Nervosa? Table gives the American Psychiatric Association diagnostic criteria for anorexia nervosa. Although the manual does not use bod

Define essentiality of vitamins for growth of micro-organism, Define Essent...

Define Essentiality of Vitamins for Growth of Micro-Organism Vitamins are also essential in small amounts for cellular activities and growth. These are also the coenzymes for a

Chemical reactions which are catalysed by enzymes, Give two examples of che...

Give two examples of chemical reactions which are catalysed by enzymes in the course of brewing.  In the course of brewing, enzymes in the grain catalyse the conversion of star

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