KP161 Chapter Notes - Chapter Chapter #4: Central Nervous System, Optic Chiasm, Peripheral Nervous System
6 Feb 2018
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Kp 161 - chapter #4 - neural mechanisms: contributions and control. The nervous system is responsible for the processes that underlie movement preparation, execution, and control. Subdivided into two components; the central nervous system (cns) and the peripheral nervous system (pns) Cns has the brain and the spinal cord where decisions are made and sent out to the muscles in the body. The pns is subdivided into sensory or afferent and efferent. Afferent division is what deteched changes in the environment and conducts nerve impulses from the various sensory receptors towards the cns. Efferent division is what transmits impulses away from the cns to the effectors. Exteroceptors detect stimuli outside the body and provide information about the. Exteroceptors are located near the bodies surface. Interoceptors detect stimuli from the internal viscera and provide information about the internal environment, leading to feelings like hunger or nausea.
