Which gland undergoes atrophy in adults?

Which of the following glands is responsible for immunity in humans?

Which of the following is $NOT$ associated with the thymus gland?

Where are Hassall's corpuscles found?

Select the correct statements regarding Thymus gland.
i. It is located in the upper part of thorax.
ii. It is made up of four lobes of lymphoid tissue.
iii. It is a prominent gland formed at birth and remains active throughout life.
iv. It is also called temporary gland.
v. It plays an important role in the development of immune system and provides humoral immunity.
In the light of above statements,choose the correct option from below.

Damage to thymus in a child may lead to