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

Define iron status of the individual, Define Iron Status of the Individual ...

Define Iron Status of the Individual Lastly, iron status of the individual is a floury determinant of how much iron is absorbed. On a mixed diet with some haem iron, the overal

How is oil droplet different from micelles, How is oil droplet different fr...

How is oil droplet different from micelles? Also describe the chemical make-up of each.

Describe the impact and burden of heart diseases, Describe the IMPACT AND B...

Describe the IMPACT AND BURDEN OF HEART DISEASES ? No discussion on the epidemiology of heart diseases will be complete without a look at the tremendous burden put by different

Define fat needs in nutrient requirement, Define Fat needs in Nutrient Requ...

Define Fat needs in Nutrient Requirement and Dietary Management? As we have learnt earlier on enteral and parenteral feedings; administration of lipids should be carried out ca

What is the predicted cell morphology, What are the predicted cell morpholo...

What are the predicted cell morphology, cell arrangement and gram stain results for each of the follow? 1. Bacillus megaterium 2. Staphylococcus aureus 3. Serratia marcesc

What do you meam by parthenogenesis, Q. What is parthenogenesis? Parthe...

Q. What is parthenogenesis? Parthenogenesis is the formation or reproduction of a new individual from the egg cell but without fecundation by the male gamete. According to the

Neurological disorders due to imbalanced nutritional intake, Define Neurolo...

Define Neurological disorders arising due to imbalanced nutritional intake (deficiency or excess)? Common examples are the neurological manifestations  of beriberi, pellagra, p

Drought-water stress and adaptations, Drought Drought refers to a condi...

Drought Drought refers to a condition of water shortage and it can result from many reasons. Frequently less than the normal rainfall is a common cause of drought. Less than 75

Aids, how get a aids

how get a aids

Habitat conservation - conservation of wildlife, Habitat Conservation - Con...

Habitat Conservation - Conservation of Wildlife Actually conservation means different things to different people. In the present context, conservation refers to the preservati

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