Answer:
Psychoneuroimmunology (pni) is the study of the interaction among all the following systems except the respiratory system. The correct option is A.
Explanation:Psychoneuroimmunology is the study of the relationship between behavioral, neural and endocrine (or neuroendocrine), and immunologic processes of adaptation in the human body. For example stress affects the immune system through behavioural manifestations such as anxiety and physiological changes such as blood pressure and heart rate. When stress becomes Chronic, the body system will be unable to maintain homeostasis. This may lead to indigestion and high blood pressure. Hope this helps. Thanks.
