PSYC 251 Lecture Notes - Lecture 16: Precentral Gyrus, Homeostasis, Reward System
13 Nov 2017
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Document Summary
The cells of the nervous system can be divided into two categories. Neurons: (or nerve cells) which are specialized to generate and transfer electric signals: signals for sensation, behaviour and physiological processes in all animals, responsible for cognitive abilities. Neuroglial cells: hold together nerve tissue and are called glia which is greek for glue: not capable of electric signals but some (the schwann cells) have effect on the speed that neurons electrical signal are able to travel. Nerve cells have a cell body like other cells that contains a nucleus and organelles such as the er, ribosomes, golgi apparatus, mitochondria and others that aid in cell functioning. Axon hillock: the converging point, a point of integration, at the origin of the axon at the cell body, where it is decided whether the information will be carried forward to a target cell.
