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

• A. Parathyroid hormone regulates calcium levels in the blood.
• B. The release of cortisol during stress suppresses immune function.
• C. Insulin regulates blood glucose levels.
• D. Thyroid hormones increase metabolic rate.

Answer: (B)

Verified step by step guidance

1. Identify the primary function of the endocrine system, which involves the release of hormones that regulate various bodily functions.
2. Understand the role of the immune system, which is to protect the body against infections and diseases.
3. Recognize that interactions between these systems occur when hormones influence immune responses or vice versa.
4. Consider the role of cortisol, a hormone released by the adrenal glands during stress, which is known to suppress immune function.
5. Conclude that the release of cortisol during stress is an example of an interaction between the endocrine system and the immune system, as it demonstrates how a hormone can affect immune responses.