Heart
3
Plate224
InnervationofHeart:Schema
Superior cervical ganglion
Superior cervical
(sympathetic) cardiac nerve
Middle cervical ganglion
Middle cervical
(sympathetic) cardiac nerve
Vertebral ganglion (variation)
Ansa subclavia
Cervicothoracic
(stellate) ganglion
1st intercostal
nerve
Inferior cervical
cardiac nerve
Thoracic cardiac
branch of vagus nerve
2nd thoracic ganglion
White ramus communicans
Gray ramus communicans
Thoracic (sympathetic)
cardiac branches
4th thoracic sympathetic ganglion
Posterior (dorsal) nucleus
of vagus nerve
Solitary tract
nuclei
Medulla
oblongata
Vagus nerves
Superior cervical
(vagal) cardiac branches
Inferior cervical
(vagal) cardiac branches
Ascending
connections
Cardiac
plexus
T1
T2
T3
T4
Preganglionic sympathetic fibers
Postganglionic sympathetic fibers
Preganglionic parasympathetic fibers
Postganglionic parasympathetic fibers
Visceral afferent accompanying
parasympathetic fibers
Visceral afferent accompanying
sympathetic fibers
