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Chapter 5 Nerv Sytem

Introduction to the Autonomic Nervous System

QuestionAnswer
Afferent Nerves Where the Central Nervous system receives and interpret sensory information.
Efferent Nerves CNS initiates appropriate motor responses via the peripheral efferent nerves
Autonomic Nervous System What the visceral nervers are commonly referred to
Homeostasis Normal balance among the body's internal organs.
Parasympathetic nerves that are active when the body is at rest or trying to resotre body enerty and function.
Sympathetic Nerves that are active when the body is under stress or when it is exerting energy
flight or flight reaction Body response to intense stress
Ganglion (PNS) Collection of snynapes
Preganglionic nerve fiber Formed by neurons that emerge from the spinal cord
postganglionic Formed by neurons that travel from the ganglion to the internal organ
neurotransmitter produces changes to sympathetic and parasympathetic divisions by stimulating internal organs.
Acetylcholine(ACH) nerotransmitter of parasympathetic nerves; simulates the cholinergic receptor
Norepinephrine Neurotransmitter of sympathetic (adrenergic nerves that stimulates the adrenergic receptors
Cholinergic(muscarinic) receptor Receptor located on internal organs and gland that responds to acetycholine
adrenergic receptor receptor located on internal organs that responds to norepinephrine and epinephrine.
Created by: Mickensg
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