Eccles, Rosamond M.
In vertebrates, outside the spinal column, lies the long sympathetic chain of nerve fibres studded with ganglia whose neurones innervate the glands, heart and smooth muscle. The preganglionic fibres arise from neurones in the spinal cord and leave it in the ventral roots. Thence by way of the white rami they reach the sympathetic trunk and sometimes run up or down several segments of the chain before ending synoptically on ganglion cells. The sympathetic ganglion cells were shown by the...[Show more]
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