BIOL 339 Chapter Notes - Chapter 8: Efferent Nerve Fiber, Peripheral Nervous System, Enteric Nervous System
23 Oct 2016
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Chapter 8 functional organization of nervous systems: Nervous system is one of the body"s homeostatic control systems: regulates physiological processes and coordinates behaviour. Contains sensors, integrating centers, and output pathways. Interneurons: are part of the integrating centers: neurons for synaptic connections among neurons, output signals are usually sent to the efferent neurons. Efferent neurons send signals to effector organs. Nervous system acts to sense: environmental information, coordinate responses. Most nervous systems organized into three functional divisions: afferent sensory division, efferent division. Both types of systems first found in bilaterally symmetrical animals. One part of the peripheral nervous system. Carries signals from periphery into central nervous system. Brain and spinal cord integrate signals: sends signals to body via efferent division. Can be divided into two nervous systems: somatic ns: Vertebrates have this: associated with the gut, regulates independently by the brain via autonomic ns.
