TRUE statement regarding nerve supply of adrenal gland
Correct Answer: Preganglionic fibres from lower thoracic & upper lumbar spinal segments sympathetic chain
Description: Preganglionic fibers from L thoracic & upper lumbar segment sympathetic. The suprarenal gland has a rich supply of nerves - myelinated preganglionic sympathetic fibers (thoracolumbar). the chromaffin cells in it are considered homologous to post ganglionic sympathetic fibers. Adrenal coex also receives some sympathetic innervation, controlling the release of coisol etc. (besides being under hormonal control) * Thoracolumbar sympathetic neurons arise from the intermedio - lateral horn cells of the spinal cord * These preganglionic nerves bypass 2 ganglion chains - the preveebral & paraveebral ganglionic chains
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Anatomy
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