Parasympathetic Ganglion in head & neck Dr M Idris Siddiqui

1. Ganglion
Dr M Idris Siddiqui
Parasympathetic
In Head & Neck

2. Each ganglion has 3 roots:
Otic ganglion is exception.It contains 4th root (motor somatic
efferent) from nerve to medial pterygoid to two tensors
1. Parasympathetic root carries preganglionic fibres from cells of
origin in brain stem nuclei. This essential functional root of
ganglion. Its fibres synapse in it whereas all other roots simply
pass through the ganglion without synapse.
2. Sympathetic root contains postganglionic fibres from
sup.cervical ganglion whereas preganglionic cell bodies are in
lateral Grey horn of cord segment T1-T3Sympathetic root
contains postganglionic fibres from sup.cervical ganglion
whereas preganglionic cell bodies are in lat. Grey horn of cord
segment T1-T3
3. The sensory root contains peripheral processes of cell bodies in
trigeminal ganglion

3. Ciliary ganglion
belong
suspen
ded
Parasympa
thetic
Parasympath
etic Sympathetic Sensory
Relations to to Nucleus root root root
in the orbit
III
nerve
nasocil
iary n. Edinger
via inf. div. of
nerve
via nasociliary
n.
nasociliary
nerve
Lateral to optic
nerve Westphal to inf. oblique
from
int.carotid
medial to
lat.rectus Nucleus from III n. plexus
near apex of
orbit

5. Branches of ciliary ganglion
15-20 short ciliary nerves which
pass with optic nerve to back of
eye ball

6. Ciliary ganglion
Edinger
Westphal
nucleus
3rd n.
inf.div. of 3rd nerve
nerve to inf.oblique
ciliary
ganglion
short ciliary nerves
sphincter
pupillae
ciliary muscles

7. Pterygopalatine ganglion
belong
suspend
ed
Parasy
mpath
etic
Parasympath
etic
Sympathe
tic Sensory
Relations
to to
Nucleu
s root root root
Pterygopa
latine
in PPF in
upper
VII
nerve
maxillar
y n.
sup.sali
vary
greater
petrosal
deep
petrosal n.
maxillary
n.
ganglion part nucleus
(superfiscial)
nerve
from VII

10. Pterygopalatine & submadibular ganglion
Superior salivary nucleus
7th
nerve
Greater
superfiscial
petrosal nerve
Chorda tympani
Pterygopalatine
ganglion
joins lingual nerve
Lacrimal gland
Glands of nose & palate
Submandibular
ganglion
Sublingual
gland
Submandibular
gland

11. Branches of pterygopalatine
ganglion
They run in all directions except
outward & forward:
1.Ascending: orbital(periostium)
2.Descending:ant.palatine
3.Inward:nasopalatine & nasal
4.Backward:the pharyngeal

12.
belong
suspen
ded
Parasy
mpathet
ic
Para
sympathetic Sympathetic Sensory
Relations to to Nucleus root root root
Submandibular
in
submandibular
VII
nerve
lingual
n.
sup.
salivary
chorda
tympani
plexus around
ECA lingual n.
Ganglion region on nucleus from VII
& lingual
artery
hyoglossus
Lateral:
submandibular
gland
medial:
Hyoglossus m.
above Lingual
n.
below:
Submandibular
gland

14. Branches of submandibular gland
1. To submandibular gland & duct
to sublingual gland
2. To mucous membrane of mouth
& tongue

15. Relations belong
to
suspended
root
Parasy
mpath
etic
root
Sympathe
Tic root
Sensory
root
Nucleus
Otic
ganglion
in
infratemporal
Fossa
Lat.: V3 n
med.: Tensor
palati
post.: MMA
ant.: med.
Pterygoid
all structures
lie deep
to lat.
Pterygoid
IX nerve mandibular
n
lesser
petrosal
nerve
from IX
plexus
around
middle
meningeal
IX n.
&
mandibular
div. of V
inf.salivary
nucleus

16. Inferior salivary nucleus
9th n.
Tympanic branch
Tympanic plexus
in middle ear
Lesser petrosal
nerve
Otic ganglion
Auriculotemporal
nerve
Parotid
gland
Otic ganglion

18. Branches
1. Motor to two tensors(palati&tympani)
2. Secretory to auriculotemporal n.
to parotid gland
Communications:
1.with auriculotemporal n.
2.with chorda tympani
3.with nerve to pterygoid canal