BIOL 1020 Lecture Notes - Lecture 4: Peripheral Nervous System, Central Nervous System, Spinal Cord
24 Dec 2015
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Document Summary
Neuron dencrites: the basic anatomical unit of the unit system. Neural transmission begins at the postsynaptic membranes of the. Chemical or electrical processes are initiated, which cause the neuron to conduct the incoming signal through the dendrites and the cell body, down the axon, until it reaches the presynaptic membranes. Neurons do not touch one another: there exists a space between neurons called the synaptic clef. Central nervous system: neocortex, limbic system, brain stem, spinal cord, somatic/motor nervous system. Sensory and motor signals to and from the cns. Concerned with the regulation of the body"s internal environment and the maintenance of homeostasis. Parasympathetic nervous system: concerned with preparing the body for action, concerned with restorative functions and relaxation of the body. The stress response: stressor event cognitive appraisal and integration neurological triggering psychological response target organ activation coping behavior. Cognitive appraisal refers to the process of cognitive interpretation: the meaning that are assigned to the world as it unfolds.
