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39 Cards in this Set
- Front
- Back
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The predominant fiber type in SNS, the predominant receptor.
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Type A, nicotinic (for ACh)
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The cell bodies of SNS neurons
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Ventral horn.
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The fiber type of pregang ANS neurons
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B
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The fiber type of postgang ANS neurons
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C
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Main postgang sym neurotransmitter
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Norepi
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Main postgang parasym neurotransmitter
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ACh
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Adrenal medullae neurotransmitter
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Epi/Norepi
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Main sweat gland neurotransmitter
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ACh
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How can you remember that pregang sym neurons are short?
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The sympathetic chain ganglia are right next to the spinal column.
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Neurotransmitter to sweat glands in hands and feet
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Norepi
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Where do pregang parasym neurons originate?
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CN 3,7,9,10 and S2-4
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Predominant postgang ACh receptor type in parasym neurons
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Muscarinic
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How do pregang sym nerve fibers get to the prevertebral ganglia?
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Via the splanchnic nerves
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What are considered intramural ganglia?
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The vagus in the medulla and sacral spinal cord.
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What is divergence?
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Sympathetic stimulation tends to be spread out over large regions of the body.
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Another name for the sympathetic division of the ANS
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Thoracocolumbar outflow
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Another nam for the parasympathetic division of the ANS
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Craniosacral outflow
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The 3 splanchnic ganglia we need to know
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Celiac, superior mesenteric, inferior mesenteric
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2 major autonomic plexuses in the thorax
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Cardiac and pulmonary
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The biggest autonomic plexus in the body
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Celiac (solar)
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A ganglionic blocker affects what?
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The nicotinic receptor in autonomic ganglia, but not at neuromuscular jxn.
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Are muscarinic receptors solely excitatory?
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No. They can be either. Nicotinic receptors are only E.
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What blocks muscarinic receptors?
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Atropine.
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What is the primary difference between nicotinic and muscarinic receptors?
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Nicotinic are typically ionotropic, while muscarinic are metabotropic.
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The only place in the body where Beta-3 receptors are found
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Brown adipose tissue.
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Typical function of alpha/beta-1 receptors
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Excitation. Consider the function of beta blockers
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Typical function of alpha/beta-2 receptors
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Inhibition
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The three contents of adrenergic varicosities
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Norepi, ATP, neuropeptide Y
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The three contents of cholinergic varicosities
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ACh, VIP...and then NO as needed.
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The tonic manager of the ANS
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Hypothalamus
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The four E situations that provoke sym response
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Embarassment, Excitement, Exercise, Emergency
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Why does sym stimulation last longer?
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Norepi does not break down as fast.
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What is parasym SLUDD stand for?
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Salivation, lacrimation, urination, digestion, defecation
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Brachoconstriction
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Parasym
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Vasodilation
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Parasym
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Vasoconstriction
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Sym
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Erection
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Parasym
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Sweating
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Sym
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What two control centers are located in the medulla?
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Cardiovascular and respiratory
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