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GRAY's Atlas of Anatomy

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THE BODY • Sympathetics<br />

Peripheral<br />

Organs<br />

T1<br />

Preganglionic sympathetic nerves<br />

follow somatic nerves to periphery<br />

(glands, smooth muscle)<br />

Thoracic visceral plexuses<br />

Heart<br />

L2<br />

Prevertebral plexus<br />

Abdominal viscera<br />

Sympathetic ganglion<br />

Sympathetic trunk<br />

Preganglionic sympathetic<br />

Postganglionic sympathetic<br />

Ganglion impar<br />

Pelvic viscera<br />

14<br />

All sympathetic visceral efferent (motor) nerves originate from<br />

spinal levels T1–L2 and pass into the associated spinal nerves

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