Session 3 - Autonomic Supply to the Head and Neck Flashcards Preview

ESA 4 - Head and Neck > Session 3 - Autonomic Supply to the Head and Neck > Flashcards

Flashcards in Session 3 - Autonomic Supply to the Head and Neck Deck (22)
1

What are the 4 classes of spinal nerves? What do they do?

  1. General somatic afferents – general sensation
  2. General visceral afferents – visceral sensation
  3. General visceral efferents – Visceral structures
  4. General somatic Efferents – Skeletal muscles

2

What are the 3 extra classes of special cranial nerves? What do they do?

  1. Special visceral efferents – muscles derived from pharyngeal arches (CNV, VII, IX, X)
  2. Special somatic afferents – equilibration, hearing, and sight
  3. Special visceral afferents – taste

3

What is the general structure of outflow of autonomic signals?

Specific CNS nuclei --> Autonomic Ganglion --> Effector organ

Pre-ganglionic Axon             Post-ganglionic axon

4

Which cranial nerves go to the head and neck region?

CN III, VII, IX, X

5

Which cranial nerve goes to viscera?

CN X

6

What are the names of the 12 cranial nerves?

I - Olfactory

II - Optic

III - Oculomotor

IV - Trochlear

V - Trigeminal

VI - Abducent (Abducens)

VII - Facial

VIII - Vestibulocochlear

IX - Glossopharyngeal

X - Vagus

XI - Spinal Accessory

XII - Hypoglossal

 

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7

What is the function of the 12 cranial cranial nerves?

I - Sensory

II - Sensory

III - Motor

IV - Motor

V - Both

VI - Motor

VII - Both

VIII - Sensory

IX - Both

X - Both

XI - Motor

XII - Motor

 

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8

Where does the sympathetic innervation of the H&N come from? Where is this found?

Sympathetic Trunk

  • Anterolateral to the vertebral column
  • Lying on the prevertebral fascia and muscles
  • Deep to the carotid sheath

9

What are the 3 cervical sympathetic ganglia? What are they known as after synapsing? Where do they travel?

Superior, middle and inferior

After synapsing, known as internal and external carotid nerves. Travel alongside BVs to target tissues.

10

What 3 structures does the superior cervical ganglion supply?

The Pharyngeal Plexus
The Upper 4 Cervical Nerves
Cardiac Branch to the Cardiac Plexus

11

What 2 structures does the middle cervical ganglion supply?

The 5th and 6th Cervical Nerves
Cardiac Branch to the Cardiac Plexus

12

What 2 structures does the inferior cervical ganglion supply?

The 7th and 8th Cervical Nerves
Cardiac Branch to the Cardiac Plexus 

13

What are the 4 pairs of parasympathetic ganglia in the head?

Ciliary Ganglion
Pterygopalatine Ganglion
Submandibular Ganglion
Otic Ganglion

14

What are the 4 cranial nerves that have brainstem nuclei?

Oculomotor (CN III)
Facial (CN VII)
Glossopharyngeal (CN IX)
Vagus (CN X)

15

Which ganglia are following CNs associated with?

a) oculomotor

b) facial

c) glossopharyngeal

a) ciliary ganglion

b) pterygopalatine / submandibular ganglion

c) Otic ganglion

16

Where does the ciliary ganglion lie?

Orbital cavity

17

Where does the pterygopalatine ganglion lie? What PS structures and Sympathetic structures does it control?

Lies in pterygopalatine fossa

PS - Lacrimal glands, glands of nose, palate and nasopharynx

Sympathetic - Superior cervical ganglion

18

What PS and Sym structures does the ciliary ganglion supply?

PS - Sphincter papillae, ciliary muscles

 

19

What PS and sym structures does the Submandibular ganglion supply?

PS - submandibular gland, sublingual

 

20

What sym and PS strctures does the Otic ganglion supply?

PS - parotid

Sym - Parotid gland

21

What causes Horner's Syndrome? How does it manifest?

Interruption of a cervical sympathetic trunk

Features on ipsilateral side of head:

  • Miosis - constriction of pupil
  • Ptosis
  • Vasodilation - Redness and increased temp of skin
  • Anhydrosis - Absence of sweating.

22