PSY 102 Lecture Notes - Lecture 4: Peripheral Nervous System, Axon Terminal, Oligodendrocyte
9 Feb 2018
School
Department
Course
Professor
Document Summary
Outline: nerve cells and communication in the brain (written question neuron potential, the central and peripheral nervous system* (mc focus from textbook, hormones and the endocrine systems. Neurons: the brain"s communicators (mc: specialized in communication with each other, ~ 86 neurons, with 160 billion connections, unique shape compared to other cells. Cell body (soma: center of neuron; builds new cell components. Dendrites: branchlike extension that receive information from other neurons. Axons: tails of the neuron that spread out from the cell body and transit information. Axon terminal: end of the axon containing synaptic vesicles filled with neurotransmitters. Neurotransmitters (nts: chemical messengers that allow neuron to neuron communication. Synapse: space between neurons where nts travel. Psy102 lecture 4: oligodendrocytes, promotes new connections, produce the myelin sheath around axons, myelin sheath, glial cells wrapped around axons that act as insulators of the neuron"s signal, without insulation, there wouldn"t be as much efficiency. Two different types of communication: electrical and chemical (mc*)
