| 1. | As a result, the postsynaptic parasympathetic nerve fibers are very short.
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| 2. | Pupil size is therefore under the dual control of sympathetic and parasympathetic nerves.
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| 3. | ACh is secreted by parasympathetic nerve fibers of both the short and long reflex pathways.
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| 4. | Incoming parasympathetic nerve fibers form synapses with the dendrites of nerve cells within the ganglion.
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| 5. | Although such pacemaker potentials have a parasympathetic nerves.
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| 6. | The gland receives parasympathetic nerve supply from the superior laryngeal nerve and the recurrent laryngeal nerve.
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| 7. | This toxin contains histamine, serotonin and acetylcholine, the last of which causes powerful stimulation of the parasympathetic nerve system.
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| 8. | The enteric nervous system is independent but is connected to the central nervous system by sympathetic and parasympathetic nerves.
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| 9. | As shown in the chart above, methoctramine binds preferently to M2 receptors, found mostly in the parasympathetic nerves and atria.
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| 10. | Three spinal nerves in the sacrum ( S2-4 ), commonly referred to as the pelvic splanchnic nerves, also act as parasympathetic nerves.
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