240 Chapter 6
Oculomotor
nerve (CN III)
Facial nerve (CN VII)
Glossopharyngeal
nerve (CN IX)
Superior
cervical
ganglion
Inferior
cervical
(stellate)
ganglion
Sympathetic
trunk
Sympathetic division Parasympathetic division
Constricts pupil
Inhibits
salivation and
lacrimation
Stimulates
salivation and
lacrimation
Dilates
airways
Constricts
airways
Accelerates
heartbeat Slows
heartbeat
Stimulates secretion
by sweat
glands
Piloerection
Hair
follicle Inhibits
digestion
Stimulates gall bladder
to release bile
Gall
bladder
Stimulates
digestion
Stomach
Stimulates secretion
of adrenaline and
noradrenaline
Constricts
systemic
blood vessels
Stimulates urinary
bladder to contract
Parasympathetic ganglia
in or near end organs
Stimulates
ejaculation
CranialCranial
Cervical
Thoracic
Lumbar
Sacral
Cervical
Thoracic
T1
L1
L2
L3
S2
S3
S4
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
Lumbar
Sacral
Dilates blood
vessels in
intestines
Pancreas
Relaxes urinary
bladder
Celiac
ganglion
Superior
mesenteric
ganglion
Prevertebral
ganglia
Paravertebral
ganglia
Dilates pupil
Adrenal
Stimulates glucose
production
and release
Stimulates penile
erection
Vagus
nerve
(CN X)
Constricts
blood vessels
in intestines
Liver
Inferior
mesenteric
ganglion
= Acetylcholine
= Norepinephrine
Key
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