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

What are the dietary principles, The dietary principles underlying the ente...

The dietary principles underlying the enteric diet  include: High calorie High protein High carbohydrate Moderate fat High  fluid Low fibre and soft diet

Thermal stratification - lake ecosystem, Thermal Stratification - Lake Ecos...

Thermal Stratification - Lake Ecosystem Shallow lakes show no thermal stratification as their waters are well mixed, resulting in uniform temperature throughout. However lakes

Grazing food chain - food chain, Grazing Food Chain - Food Chain Grazi...

Grazing Food Chain - Food Chain Grazing food chains are quite familiar to most of us. Cow or deer grazing in a field represent a grazing food chain. Similarly, eating of phyto

Human chromosomes, HUMA N CHROMOSOMES The normal diploid (2N) chromoso...

HUMA N CHROMOSOMES The normal diploid (2N) chromosome number in human being is 46. It was given by T.H. Tjio and A. Levan in 1956. The chromosome complement of a cel

Determine the membrane voltage of neuron b, Consider Neuron B in the frog c...

Consider Neuron B in the frog central nervous system whose plasma membrane has a previously unknown channel that is selectively conductive to a newly discovered tetravalent anion n

Find the highest homology among different species, Which level of a gene, s...

Which level of a gene, such as the ADH gene and its encoded product should have the highest homology among different species? Explain your answer. A. The genomic DNA sequences o

Define advantages and disadvantages of swab method, Define Advantages and D...

Define Advantages and Disadvantages of Swab Method? Advantages of Swab Method 1. Suitable for flexible, uneven and heavily contaminated surfaces. 2. Rapid, simple and ine

Zinc (zn) - micronutrients, Zinc (Zn) - Micronutrients In its function...

Zinc (Zn) - Micronutrients In its function in some enzyme systems, zn 2+ resembles Mn 2+ in that it brings about substrate binding and conformational changes in enzymes. A n

What are the vascular bundles, What are the vascular bundles? How does conf...

What are the vascular bundles? How does configuration of the vascular bundles within the stem differentiate monocots from dicots? The Vascular bundles are segments of xylem and

Procedure - separation of amino acid by paper chromatography, Explain Proce...

Explain Procedure for Separation of Amino Acids by Paper Chromatography? Now carry out the procedure following the steps given herewith: 1. Take a circular Whatman No 1 filt

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