What is an example of an interaction between the endocrine system and the immune system?

Which of these is an example of an interaction between the endocrine system and the immune system?

A. The thymus secretes thymosin.

B Removal of the thymus lowers brain endorphin levels.

C. Hormones produced by the thymus and cytokines produced by cells of the immune system help establish the normal levels of CRH and TRH produced by the hypothalamus.

D. All of these are examples of interactions between the endocrine system and the immune system.

D. All of these are examples of interactions between the endocrine system and the immune system.

Explanation:

All of these are examples of interactions between the endocrine system and the immune system, because of the following reasons:

1.  Thymus which secretes thymosin acts a necessary role in the lymphatic system which  is part of immune system, and endocrine system.

2.  Removal of the thymus lowers brain endorphin levels; this means that thymus which is a lymphoid organ of immune system, works in such a way, that it removal lowers brain endorphins which is secreted by pituitary gland, and is a part of endocrine system.

3.  Hormones produced by the thymus and cytokines produced by cells of the immune system help establish the normal levels of CRH and TRH produced by the hypothalamus: here, hypothalamus works with pituitary gland which are part of endocrine system.

Hence, this shows that all the options A to C are correct examples of interaction between immune system and endocrine system.

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