PSYS 100 Lecture Notes - Lecture 4: Cerebellum, Limbic System, Resting Potential
16 Sep 2016
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Document Summary
Biological processess: the nervous system is composed of cells called, sensory neurons: detect energy/information in the environment, interneurons: network within brain, motor neurons: carry impulses away from brain/spinal cord to muscles/glands neurons. Information transmitted within a single cell: d"sat: dendrites, soma, axon, terminal buttons, resting potential: the standing electrical charge present when cell is at rest. Outside= positive: nerve impulse itself is called the action potential, a sudden reversal in polarity, refractory period: can"t fire again until resting potential is re-established. Info transmitted between neurons via chemical diffusion: synapse: a tiny space between neurons. Impact of the electrical impulse at terminal buttons releases certain chemicals across synapse to dendrites of other neurons in graded fashion. Chemicals that diffuse across synapses are called neurotransmitters: key parts of the brain, limbic system ( 5 fs ) F***ing: cerebellum: coordinates voluntary movement and balance, cerebral cortex. Cognitive and behavioral functions distributed among the frontal, parietal, temporal, and occipital lobes.
