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PARASYMPATHETIC GANGLIA
OF THE HEAD
Prof. Laila M. Aboul Mahasen Morsy
Anatomy Dept. , Faculty of Medicine
Al-Azhar Univer...
PARASYMPATHETIC GANGLIA OF THE HEAD
They include :
1. CILIARY GANGLION
2. SUBMANDIBULAR
GANGLION
3. OTIC GANGLION
4. SPHEN...
SphenopalatineSubmandibularOticGanglion
in the pterygopalatine
fossa, suspended from
maxillary nerve
superficial to
hyoglo...
OTIC GANGLION
Site : lies in the infratemporal fossa just
below the foramen ovale
Roots:
1. Parasympathetic root : lesser
...
• The preganglionic fibres arise from the inferior salivary nucleus in the brain stem
• They run with CN IX, then through ...
Submandibular Ganglion
Sensory : lingual N..
Sympathetic : plexus around facial A.
Parasympathetic: preganglionic parasymp...
Parasympathetic part of submandibular ganglion
NUCLEUS: superior salivary nucleus (pons)
PREGANGLIONIC FIBERS:
The fibres ...
Submandibular Ganglion
A small parasympathetic ganglion suspended from the lingual nerve on the upper
part of lateral surf...
Superior salivary
nucleus
Facial nerve
Chorda
tympani
nerve
Facial artery
Submandibular gland
Submandibular
ganglion
Lingu...
SPHENOPALATINE (PTERYGOPALATINE) GANGLION
Superior salivary
nucleus
Facial nerve
Greater
petrosal n
Maxillary n.
Deep
petr...
BRANCHES oF PTERYGOPALATINE GANGLION
Postganglionic Fibres :
1. Lacrimal gland : along
ganglionic branches →
maxillary ner...
Sphenopalatine Ganglion
Superior salivary
nucleus
Facial nerve
Greater
petrosal n
Maxillary n.
Deep
petrosal N.
Nerve of
p...
Prof. Laila M. Aboul Mahasen
Parasympathetic fibres by facial nerve
CILIARY GANGLION
SITE: in the fat between optic nerve & lateral
rectus muscle
NUCLEUS: Edinger Westphal of oculomotor
(mid...
Ciliary Ganglion Long ciliary nerves
Short ciliary nerves
Ciliary
ganglion Prof. Laila M. Aboul Mahasen
Ciliary GanglionA minute parasympathetic ganglion lateral to the optic nerve (1-2 mm)
Site: posterior part of orbit near t...
1. The preganglionic fibers originate from Edinger Westphal nucleus in the midbrain
& run with the oculomotor nerve to rel...
Prof. Laila M. Aboul Mahasen
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Prof. laila 2017 kau parasympathetic ganglia

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Parasympathetic ganglia of the head

Veröffentlicht in: Gesundheit & Medizin
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Prof. laila 2017 kau parasympathetic ganglia

  1. 1. PARASYMPATHETIC GANGLIA OF THE HEAD Prof. Laila M. Aboul Mahasen Morsy Anatomy Dept. , Faculty of Medicine Al-Azhar University & KAU
  2. 2. PARASYMPATHETIC GANGLIA OF THE HEAD They include : 1. CILIARY GANGLION 2. SUBMANDIBULAR GANGLION 3. OTIC GANGLION 4. SPHENOPALATINE (PTERYGOPALATINE) GANGLION Prof. Laila M. Aboul Mahasen
  3. 3. SphenopalatineSubmandibularOticGanglion in the pterygopalatine fossa, suspended from maxillary nerve superficial to hyoglossus muscle, suspended from lingual nerve just below foramen ovale, deep to trunk of mandibular nerve Site Maxillary N.Lingual N.Mandibular N.Sensory root Plexus around internal carotid artery ( deep petrosal N) Plexus around facial artery Plexus around middle meningeal artery (External petrosal N.) Sympathetic root Superior salivary nucleus greater petrosal branch of 7th N.→ joins deep petrosal → both nerves form nerve of pterygoid canal →ganglion Superior salivary nucleus chorda tympani of facial nerve → joins lingual nerve → ganglion Inferior salivary nucleus lesser petrosal branch of tympanic of 9th N. → passes in foramen ovale to the ganglion Parasympathetic root PREGANGLIONIC FIBERS 1.Zygomaticotemporal nerve → lacrimal nerve → lacrimal gland 2.Along greater & lesser palatine branches → palatine glands 3.Along nasal branches → nasal glands 1.Pass directly to submandibular gland 2.Pass along lingual nerve after rejoining → sublingual gland Passes along auriculotemporal nerve → secretomotor fibers to parotid gland Distribution POST- GANGLIONC FIBERS Prof. Laila Aboul Mahasen Prof. Laila M. Aboul Mahasen
  4. 4. OTIC GANGLION Site : lies in the infratemporal fossa just below the foramen ovale Roots: 1. Parasympathetic root : lesser petrosal nerve 2. Sympathetic root : from plexus around the middle meningeal artery 3. Motor root : from the nerve to medial pterygoid muscle Branches: 1. Postganglionic parasympathetic fibers carried by the auriculotemporal nerve to the parotid gland 2. Sympathetic fibers to the parotid vessels 3. Motor fibres: to tensor palati and tensor tympani muscles . Otic ganglion Lesser petrosal N. Tensor tympani & n. Auriculo- temporal N. ECA Inferior alveolar N. Mylohyoid N.Medial pterygoid M. Tensor palati M. & its Nerve Prof. Laila M. Aboul Mahasen
  5. 5. • The preganglionic fibres arise from the inferior salivary nucleus in the brain stem • They run with CN IX, then through its tympanic branch to join the tympanic plexus • The fibres are then carried by the lesser petrosal nerve which leaves through the foramen ovale and terminates in the otic ganglion Foramen ovale Tympanic plexus Glossopharyngeal nerve Inferior salivary nucleus Otic ganglion Auriculotemporal nerve Lesser petrosal nerve Tympanic branch of glossopharyngeal Prof. Laila M. Aboul Mahasen Preganglionic fibres of OTIC GANGLION
  6. 6. Submandibular Ganglion Sensory : lingual N.. Sympathetic : plexus around facial A. Parasympathetic: preganglionic parasympathetic fibers from the chorda tympani ( from facial N.) relay in submandibular ganglion & postganglionic fibres carried by the lingual nerve Superior salivary nucleus Facial nerve Chorda tympani nerve Facial artery Submandibular gland Submandibular ganglion Lingual nerve (pregang.) Sublingual gland Lingual nerve (postgang.) Prof. Laila M. Aboul Mahasen
  7. 7. Parasympathetic part of submandibular ganglion NUCLEUS: superior salivary nucleus (pons) PREGANGLIONIC FIBERS: The fibres pass along chorda tympani of facial nerve → joins lingual nerve → posterior root → ganglion *The lingual nerve is connected to the ganglion by posterior & anterior roots POSTGANGLIONC FIBERS: 1. Pass directly to submandibular gland 2. Rejoin with lingual nerve and pass along anterior root → lingual nerve → sublingual gland Prof. Laila M. Aboul Mahasen
  8. 8. Submandibular Ganglion A small parasympathetic ganglion suspended from the lingual nerve on the upper part of lateral surface of hyoglossus muscle Roots: Sensory: lingual N. . Sympathetic: plexus around facial & lingual arteries *Sensory& sympathetic fibres transverse the ganglion without relay . Parasympathetic: preganglionic fibers from chorda tympani ( from facial N.) relay in the ganglion & postganglionic fibres are carried by lingual nerve Branches: 1.Parasympathetic secretomotor to submandibular and sublingualboth glands 2.Sensory: carry sensations from the submandibular and sublingual glands 3.Sympathetic: to the vessels of the submandibular and sublingual glands Prof. Laila M. Aboul Mahasen
  9. 9. Superior salivary nucleus Facial nerve Chorda tympani nerve Facial artery Submandibular gland Submandibular ganglion Lingual nerve (pregang.) Sublingual gland Lingual nerve (postgang.) Submandibular Ganglion Prof. Laila M. Aboul Mahasen
  10. 10. SPHENOPALATINE (PTERYGOPALATINE) GANGLION Superior salivary nucleus Facial nerve Greater petrosal n Maxillary n. Deep petrosal N. Nerve of pterygoid canal Sphenopalatine ganglion ICA Sympathetic chain Prof. Laila M. Aboul Mahasen
  11. 11. BRANCHES oF PTERYGOPALATINE GANGLION Postganglionic Fibres : 1. Lacrimal gland : along ganglionic branches → maxillary nerve → zygomatic branch of maxillary nerve → Zygomaticotemporal nerve → lacrimal nerve → lacrimal G. 2. Palatine glands : along greater & lesser palatine branches → palatine glands 3. Nasal glands : along nasal branches 4. Nasopharynx : along nasal branches Prof. Laila M. Aboul Mahasen
  12. 12. Sphenopalatine Ganglion Superior salivary nucleus Facial nerve Greater petrosal n Maxillary n. Deep petrosal N. Nerve of pterygoid canal Sphenopalatine ganglion ICA Sympathetic chain Sphenopalatine ganglion Greater petrosal N.(parasymp.) Deep Petrosal N.(symp.) Nerve to pterygoid canal (vidian N.) Maxillary nerve Sensory roots Prof. Laila M. Aboul Mahasen
  13. 13. Prof. Laila M. Aboul Mahasen Parasympathetic fibres by facial nerve
  14. 14. CILIARY GANGLION SITE: in the fat between optic nerve & lateral rectus muscle NUCLEUS: Edinger Westphal of oculomotor (midbrain) Preganglionic Fibres: pass along oculomotor through nerve to inferior oblique Postganglionic Fibres : pass along short ciliary nerves to sphincter pupillae & ciliary muscles Prof. Laila M. Aboul Mahasen
  15. 15. Ciliary Ganglion Long ciliary nerves Short ciliary nerves Ciliary ganglion Prof. Laila M. Aboul Mahasen
  16. 16. Ciliary GanglionA minute parasympathetic ganglion lateral to the optic nerve (1-2 mm) Site: posterior part of orbit near to apex in between the optic nerve (medially) &lateral rectus (laterally) Roots: Sensory: from nasociliary nerve Parasympathetic (preganglionic): from nerve to inferior oblique Sympathetic (postganglionic): from plexus around internal carotid artery Branches: short ciliary nerves20-15 1.Pierce the sclera around the optic N. 2.They carry: a. Sensory fibers: to the cornea, choroid and iris b. Postganglionic Parasympathetic fibers: to sphincter pupillae and ciliary muscles Sympathetic fibers: to ciliary vessels Prof. Laila M. Aboul Mahasen
  17. 17. 1. The preganglionic fibers originate from Edinger Westphal nucleus in the midbrain & run with the oculomotor nerve to relay in the ciliary ganglion. 2. From the ciliary ganglion, postganglionic fibers are carried by the short ciliary nerves to innervate the sphincter pupillae and ciliary muscles”. Parasympathetic innervation ( Ciliary ganglion) Sympathetic innervation : ( enter the ciliary ganglion & leave it without relay) 1. Preganglionic sympathetic fibres relay in Superior cervical ganglion 2. Postganglionic fibres are carried by long ciliary nerves from sympathetic plexus around the internal carotid artery to supply dilator pupillae muscle Prof. Laila M. Aboul Mahasen
  18. 18. Prof. Laila M. Aboul Mahasen

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