Autonomic Nervous System (ANS): ANS is the major involuntary, unconscious, automatic portion of the nervous system. The motor (efferent)portion of the ANS is the major pathway for information transmission from CNS to the involuntary effector tissues (smooth m, cardiac m, and exocrine gland) . There is 2 major subdivision:- Parasympathetic ANS (PANS) Sympathetic ANS (SANS) *Note: Enteric Nervous System (ENS) is the semiautonomous part of ANS located in the GIT will be discussed -in between lectures- later. Now let us looking to the sympathetic, parsympathetic (and also somatic ) communications at more close view: figure (refresh the mind for information you got in physiology ) involuntary voluntary
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Autonomic Nervous System (ANS) · ANS is the major involuntary, unconscious, automatic portion of the nervous system. The motor (efferent)portion of the ANS is the major pathway for
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Autonomic Nervous System (ANS):
ANS is the major involuntary, unconscious, automatic portion of the nervous system.
The motor (efferent)portion of the ANS is the major pathway for information transmission from CNS to the
involuntary effector tissues (smooth m, cardiac m, and exocrine gland) . There is 2 major subdivision:-
Parasympathetic ANS (PANS)
Sympathetic ANS (SANS)
*Note: Enteric Nervous System (ENS) is the semiautonomous part of ANS located in the GIT will be
discussed -in between lectures- later.
Now let us looking to the sympathetic, parsympathetic (and also somatic ) communications at more close
view: figure (refresh the mind for information you got in physiology )
involuntary
voluntary
The adrenal medulla is considered to be a modified sympathetic ganglion; the medulla is embryonically
and anatomically homologous to the sympathetic ganglia
* NOTES:
-All parasympathetic post ganglionic fibers contain acetylcholine (Ach)