Which of these glands is large at the time of birth but in adults, it reduces to a very small size?

Thyroid

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Adrenal

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Thymus

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Spleen

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Thymus
Thymus is a lymphoid gland behind the breast bone. At birth, thymus commonly weighs between $10$ and $15 gm$ . It continues to grow up to the age of puberty when its weight ranges between $30$ and $40 gm$ . Thereafter, this gland undergoes atrophy at puberty. It generally progressively diminishes in size undergoing gradual atrophy and replacement by fat so that after mid adult life it may weigh only about $10 gm$ .

The rest three glands that are, thyroid, spleen and adrenal gland do not degenerate with the age.
So, the correct answer is 'Thymus' $C$ .

Suggest Corrections

Similar questions

Q. Assertion :The thymus gland is quite large in size at the time of birth but shrinks in size with age. Reason: Immune system produces most of its T cells during childhood and requires very few new T cells after puberty.

When supernova occur all the mass of star get concentrate at at very small point and if the star has very very large mass then after supernova it turn into Black hole. But at the time of big bang entire mass of the universe came into a small point and that is a very very huge mass then why at that time the explosion occur and the black hole wasn't created.?? Please answer my question. Thanks

Q. A small body of super dense material, whose mass is half of the earth (but whose size is very small compared to the size of the earth), starts from rest at a height

H

above the earths surface, and reaches the earths surface in time

t

. Calculate time

t

assuming that

H

is very small compared to the radius of the earth. Acceleration due to gravity near the surface of the earth is

g

B^{3 +}

ion cannot exist in an aqueous medium because of its:

Q. A small body of super dense material, with mass equal to half of that of earth but whose size is very small compared to that of earth, starts from rest at the height h<<R above the earths surface. It reaches the earths surface in time given by

Join BYJU'S Learning Program