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Chapter 5
The Central and Peripheral Nervous System
14
Medical
Undergraduate 1
09/13/2011

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Term
Acetylcholine (ACh)
Definition
a chemical produced by the body that is used in the transmission of nerve impulses. It is destroyed by te ensyme cholinestrase
Term
Adrenergic (adrenomimetic)
Definition
Refers to a drug stimulating a ceptor for norepinephrine or epinephrine
Term
Afferent
Definition
Singnals that are transmitted to the brain and spinal cord
Term
Antiadrenergic
Definition
Refers to a drug blocking receptor for norepinephrine or epinephrine
Term
Anticholinergic
Definition
Refers to a drug blocking receptor for acetylcholine
Term
Central Nervous System (CNS)
Definition
A system that includes the brain and spinal cord, controling voluntary and involuntary acts.
Term
Cholinergic (chilinomimetic)
Definition
Refers to a drug causing stimulation of a receptor for acetylcholine
Term
Efferent
Definition
Signals that are transmitted from the brain to the spinal cord
Term
Norepinephrine
Definition
A naturally occurring catecholamine, produced by the adrenal medullas, that has properties similar to those of epinephrine. Used as a neurotransmitter in most sympathetic terminal nerve sites
Term
Parasympatholytic
Definition
An agent blocking or inhibiting the parsympathetic nervous system
Term
Peripheral Nervous System (PNS)
Definition
Portion of the nervous system outside the CNS, including sensory, sypathetic, and parasympathetic nerves
Term
Sympatholytic
Definition
An agent blocking the or inhibiting the effect of the sympathetic nervous system
Term
Sympathomimetic
Definition
An angent causing stimulation of the sympathetic nervous system
Term
Parsympathomimetic
Definition
An agent causing stimulation of the para sympathetic nervous system
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