Anatom3DGanglia of sympathetic trunk
Ganglia trunci sympathici · Ganglia sympatického kmene
Nervous system
Looks like
A chain of small knots of nerve cells running down each side of the spine, from the neck to the tailbone.
What it does
Relay the 'fight or flight' signals to blood vessels, sweat glands, heart and organs.
Keeping it well
Injury or tumour in the neck chain can cause Horner syndrome (small pupil, droopy lid) — new signs need investigation.