PSYC 100 Chapter Notes - Chapter 2: Melatonin, Motor System, Cortisol
11 Sep 2018
School
Department
Course
Professor
Document Summary
Nervous system- network of cells that carry information to and from all parts of the body. Neuroscience- the field of study that deals with the structure of the brain and components of the nervous system (cid:862)the (cid:271)rai(cid:374) is (cid:272)o(cid:373)posed of (cid:374)euro(cid:374)s a(cid:374)d glial (cid:272)ells(cid:863) Glial cells: provide physical and metabolic support to neurons, communicate with other cells, influence info processing, some types even have stem cell-like properties, produce myelin to coat axons, clean up waste products/ dead neurons. Oligodendrocytes- produce myelin in the central nervous system. Schwann cells- produce myelin in the peripheral nervous system. Myelin- insulates axons and speeds up transmission of neural message. Neurons: specialized cells in the nervous system, send and receive messages within that system, are affected by neurotransmitters (these are chemicals that have effects on neurons, have an electrical charge at rest (resting potential) ^this is made possible by inside vs. outside balance of neurons, the inside is negatively charged.
