ABSTRACT
This chapter discusses what many think is a difficult task–to learn something about the way the human body is put together and the way it works. The study of the body is helpful to the behaviorist. It has been found that several different kinds of cells and their products form the several fundamental tissues of the body. These several fundamental tissues enter into various combinations to form every organ of the body, such as skin, heart, lungs, brain, muscles, stomach, glands, etc. The chapter considers the sense organs—where the various stimuli produce their effect on the body and discusses the reacting organs—the whole system of muscles and glands. It explains the nervous or conducting organs, that connect sense organs with reacting organs—they are the brain, spinal cord, and peripheral nerves. The physiology of plain muscle differs in many particulars from that of striped muscle.
