Heart
Plate225
InnervationofBloodVessels:Schema
Cervical sympathetic trunk ganglion
Internal carotid nerve
Spinal nerve
Gray rami communicantes
White ramus communicans
Cervical cardiac nerves
Brachial plexus
Spinal nerves
Spinal nerve
Upper thoracic
trunk ganglion
Thoracic cardiac
branches
Intercostal
nerves
Lower thoracic
trunk ganglion
Thoracic
splanchnic
nerves
Upper lumbar
trunk ganglion
Fibers direct
to vessels
Spinal nerve
Gray ramus communicans
Lower lumbar
trunk ganglion
Postganglionic sympathetic
fibers to lumbar and
sacral plexuses and
to nerves of lower limb
Preganglionic sympathetic fibers
Postganglionic sympathetic fibers
