Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

تمرين 39

The body's network of cells and chemicals that automatically fight off bacteria, viruses, and other foreign matter is known as the (a) _____. The study of the relationships among the central nervous system, the endocrine system, and psychosocial factors is called (b) _____. The interaction among these factors affects the immune system and, in turn, makes the body more or less susceptible to disease and infection.