PS101 Midterm: PS101 Midterm Review
Document Summary
The cells in the nervous system fall into two major categories: neurons and glia: neurons. The vast majority of them communicate only with neurons. Some, however, carry messages from the nervous system to the muscles that move the body and vice versa: glia. Glia provide various types of support for neurons. Supply nourishment, remove waste products, and provide insulation around many axons. Very abundant account for 50% percent of brain"s volume. Types of neurons 3 types of neurons: afferent neurons (sensory) Relay information from the senses and spinal cord. Send information from the central nervous system to the glands and muscles, enabling the body to move. Carry information between neurons in the central nervous system. Contains the nucleus and chemical machinery common to most cells. Parts of a neuron specialized to receive information. A long, thin fibre that transmits signals to other neurons or to muscles or glands. A junction where information is transmitted from one neuron to another.
