autonomic nervous system in the head & neck
TRANSCRIPT
![Page 1: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/1.jpg)
The Autonomic Nervous System in The Head & Neck
![Page 2: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/2.jpg)
Nervous Nervous TissueTissue
CNSCNS PNSPNS
BrainBrain Spinal CordSpinal Cord SomaticSomatic
(under control)
AutonomicAutonomic(no conscious
control)
![Page 3: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/3.jpg)
Somatic Nervous SystemSomatic Nervous System
Sensory:
general sensations
pain, thermal (hot & cold), tactile sensation, pressure
special sensations (In Medicine?)
vision, smell, hearing, taste
Motor: (1 Fxn.)
contraction of Sk. Muscle (voluntary movement)
![Page 4: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/4.jpg)
Autonomic Nervous SystemAutonomic Nervous System
Sensory: include internal receptorschemoreceptors ?? & mechanoreceptors ??
Motor: (2 Fxn.s)either exciting or inhibiting effects
cardiac muscle, smooth muscles, & glands
2 divisions:Sympathetic (from sympathy)
under dangerous situations & stress(Fight-or-Flight response)
Parasympatheticunder normal situations & relaxation
![Page 5: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/5.jpg)
![Page 6: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/6.jpg)
Somatic Vs. AutonomicSomatic Vs. Autonomic
Somatic
1. General & special sensations
2. Voluntary movement
3. On sk. Muscle
4. Single function (contraction of sk. Muscle)
5. Single neuron pathway
Autonomic
1. Non conscious sensations
2. Involuntary control
3. On smooth, cardiac, & glands
4. Dual functions
(excitation & inhibition)
5. Two neuron pathway
![Page 7: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/7.jpg)
![Page 8: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/8.jpg)
ANSANS
Anatomically
1. Preganglionic Neuronsfrom CNS autonomic ganglia, myelinated
2. Autonomic Gangliaganglion: aggregation of neuronal cell bodies & supporting cells
3. Postganglionic Neuronsfrom autonomic ganglia effector tissueunmyelinated
![Page 9: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/9.jpg)
AutonomicAutonomicNSNS
(Motor Fxn.)(Motor Fxn.)
Sympathetic:Sympathetic:Preganglionic N.Preganglionic N.
Sympathetic gangliaSympathetic gangliaPostganglionic N.Postganglionic N.
Parasympathetic:Parasympathetic:Preganglionic N.Preganglionic N.
Parasymp. gangliaParasymp. gangliaPostganglionic N.Postganglionic N.
![Page 10: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/10.jpg)
Sympathetic
(Thoracolumbar)
Preganglionic:
Thorax & Abd.
Ganglia:
Sympathetic chain
Parasympathetic
(Craniosacral)
Preganglionic:
Brain (C.N.) &
sacral
Ganglia:
Terminal ganglia
![Page 11: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/11.jpg)
Sympathetic Ganglia in Head & NeckSympathetic Ganglia in Head & Neck
3 cervical ganglia
sup., middle, & inf.
*Part of the sympathetic chain in the body
Location: ??
Stellate Ganglion?
![Page 12: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/12.jpg)
Parasympathetic Ganglia in Head & NeckParasympathetic Ganglia in Head & Neck
4 ganglia
Ciliary ganglion:
constriction of pupil
Pterygopalatine ganglion:
lacrimal gland secretion
Otic ganglion:
parotid gland secretion
Submandibular ganglion:
submand. & sublingual gland
secretions
![Page 13: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/13.jpg)
Ciliary GanglionCiliary Ganglion
Location: between ??
Suspended by ??
Pregang. Parasym. Fibers: ??
Postgang. Parasymp.: ??
Sphincter pupillae m. & ?
Postgang. Sympathetic :
Sup. Cervical ganglion
Long ciliary n. (from ?)
Dilator pupillae m.
![Page 14: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/14.jpg)
![Page 15: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/15.jpg)
Horner’s SyndromeHorner’s Syndrome
Damage to sympathetic innervation through sup. Cervical ganglion
Symptoms:
- Ptosis: dropping of upper eyelid (why?)
- pupil constriction (miosis)
- Anhydrosis: lack of sweating
- Flushing of the face (why?)
![Page 16: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/16.jpg)
Pterygopalatine GanglionPterygopalatine Ganglion
Location: ??
Suspended by V2
Pregang. Parasymp.: ??
Postgang. Parasymp.:
Zygomaticotemporal of V2
Lacrimal of V1
Lacrimal gland
![Page 17: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/17.jpg)
Postgang. Sympathetic:
From sup. Cervical ganglion
Deep petrosal nerve
Joins greater petrosal n.
To form = vidian nerve (or ?)
![Page 18: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/18.jpg)
Otic GanglionOtic Ganglion
Location: ??
Suspended by ?
Pregang. Parasymp.:
IX Tympanic n. Plexus (??) Lesser petrosal nerve
Postgang. Parasymp.:
Auriculotemporal n. to ??
![Page 19: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/19.jpg)
Postgang. sympathetic.:
Sup. Cervical ganglion Parotid g.
![Page 20: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/20.jpg)
Submandibular GanglionSubmandibular Ganglion
Location: lat. to ??
Suspended by?
Pregang. Parasymp.:
VII chorda tympani
joins the ??
Postgang. Parasymp:
Distributed directly to
Submand. & sublingual glands
Postgang. Sympathetic:
From sup. Cervical ganglion.
![Page 21: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/21.jpg)
![Page 22: Autonomic Nervous System in the Head & Neck](https://reader033.vdocument.in/reader033/viewer/2022061103/540b9e7cdab5ca326f8b4a28/html5/thumbnails/22.jpg)