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

Exercise 18

The brain is composed of a trillion cells that can be divided into two groups. One group of cells has specialized extensions for receiving and transmitting information. These cells, which are called (a) _____ , are involved in communicating with other neurons, receiving sensory information, and regulating muscles, glands, and organs. The other group of cells provide the scaffolding to guide and support neurons, insulate neurons, and release chemicals that influence neuron functions. These cells are much more numerous than neurons and are called (b) _____.