April-October (High Season): you need at least 5 nights in Santorini as you will spend lots of time on the beaches. November-March (Low Season): you need at least 3 nights in Santorini and do other things. Ideal: 10 days in Santorini during the best time of the year for the island. Over 3 nights in Greece: at least 50% of your time in Greece should be spent in Santorini and at least 25% in Mykonos. Less than 3 nights in Greece: 2 nights Santorini and 1 night Athens if you are flying through Athens or 3 nights only in Santorini if you are flying directly to Santorini.
The postganglionic neurons of sweat glands release acetylcholine for the activation of muscarinic receptors. The chromaffin cells of the adrenal medulla are analogous to post-ganglionic neuronsâthe adrenal medulla develops in tandem with the sympathetic nervous system and acts as a modified sympathetic ganglion.
The second (postganglionic) motor neuron synapses on an effector. Preganglionic fibers release the neurotransmitter acetylcholine and postganglionic fibers release acetylcholine or norepinephrine. D. Somatic nervous system effectors are skeletal muscles, and ANS effectors include cardiac and smooth muscle, and glands.. The axons of the motor neurons of the somatic nervous system extend from the CNS synapse directly to an effector and release acetylcholine, whereas autonomic pathways consist of two sets of motor (efferent) neurons. 1.