داستان آبیدیک

parasympathetic system


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1 عمومی:: سیستم پاراسمپاتیک

The parasympathetic system is an anabolic system, conserving energy, e.g. in slowing the heart rate and in promoting the digestion and absorption of food. Those of the parasympathetic system occupy comparable positions at spinal cord levels S2-S4. The final synapse of the parasympathetic system contains acetylcholine, whereas the final synapse of the sympathetic system contains noradrenaline, with the exception of certain synapses, as for sweating, that contain acetylcholine (i.e. In more pleasant circumstances, namely in sexual arousal, the parasympathetic system mediated penile and clitoral erection and the sympathetic controls ejaculation.

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