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what higher center regulated the sympathetic nervous system?
where do sympathetic preganglionic nerves orgiginate?  they pass out of the spinal courd via which nerve roots?
anteremediolateral horn of the gray matter of the thoracolumbar segment
go out via the Anterior roots
Identify 4 groups of sympathetic ganglia
superior mesenteric
inferior mesenteric
**Describe the anatomy of the hypogastric plexus
retroperitoneal structure formed by bilateral lumbar sympathetic chains.  pelvic pain can be treated with a hypogastric plexus block
postganglionic sympathetic neurons originate where?
they arise form autonomic ganglia; most of them arise form the paravertebral ganglia
** where do preganglionic parasympathetic nerves arise from
Cranial nerves: III, VII, IX, X in the brainstem and sacral segments S2-4
Craniosacral division
identify the only endogenous compound that causes simultaneous bradycardia and hypotension
what substances are metabolized by MAO-A? by MAO-B
MAO-A: epinephrine, norepinephrine, copamine, serotinin; found at adrenergic nerve endings and in the CNS

MAO-B: tyramine, dopamine, and phenylethylamine
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