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 information required for management of emergencies, Define Informati...

Define Information Required for Management of Emergencies? Management or intervention needs accurate information about the actual situation and includes many non-nutritional co

Embryogenesis, Phenomenon of embryogenesis is not confined to the reproduct...

Phenomenon of embryogenesis is not confined to the reproductive system

Discuss the importance of septa in maxillary sinus, Discuss the importance ...

Discuss the importance of septa in maxillary sinus during a sinus lift or graft surgery. Septa, when present in the maxillary sinus will divide it into sections creating separa

Explain hypertensive response, Q. Explain Hypertensive Response? Hypert...

Q. Explain Hypertensive Response? Hypertension at rest has long been known to be a risk factor for the development of coronary artery disease (CAD). Significant elevation of B

Spoilage by fungi and bacteria, Q. Explain Spoilage by fungi and bacteria? ...

Q. Explain Spoilage by fungi and bacteria? The dominant spoilage organisms in fruits are fungi, as their pH is low (normally 5),whereas the pH of vegetables is fiom 5.0 to 7

Variations on translation, Which of the following variations on translation...

Which of the following variations on translation would be most disadvantageous for a cell? A) translating polypeptides directly from DNA B) using fewer kinds of tRNA C) having only

Mammalian lungs - respiration, Mammalian Lungs - Respiration In this w...

Mammalian Lungs - Respiration In this we will study mainly mammalian lungs as it is the best representative of a respiratory surface adapted for terrestrial respiration. For t

Instrument for measurement of absorbed radiation-colorimeter, Define Instru...

Define Instrument for measurement of absorbed radiation-Colorimeter? The simplest types of, photometric instruments are designed for measurements in the visible region of spect

Sickle Cell, Sickling occurs in deoxyhemoglobin S, but not in oxyhemoglobin...

Sickling occurs in deoxyhemoglobin S, but not in oxyhemoglobin S. Oxyhemoglobin has a small hydrophobic \"pocket\" in a ß chain region located in the interior of the protein. In de

What factors are altered when cells are moved, Which factors are altered wh...

Which factors are altered when cells are moved from an in vivo to an in vitro environment, and how do cells respond to these changes?

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