PSYC 1001 Lecture Notes - Lecture 3: Auditory Cortex, Paul Broca, Human Genome Project
7 Dec 2016
School
Department
Course
Professor
Document Summary
Nervous tissue the nervous system falls into two major categories, glia and neurons. Glia: a cell that provides support for neurons. Neuron: a cell that can receive, integrate, and transmit information they are the basic links that allow for communication. Some communicate with the sensory organs or muscles. Soma: also called the cell body; contains the cell nucleus and the chemical machinery common to most cells the rest of the neuron is focused on handling information. Dendrite: the part of the neuron that receives information. Axon: a long, thin fibre that transmits signals away from the soma to other neurons or to they can be very long and may communicate with numerous cells. Myelin sheath: derived from glial cells, it is an insulating material that encases some axons. Speeds up the transmission of signals that move along the axons. Neurotransmitter: chemical messages that activate nearby neurons.
