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NWHSU PNS Autonomic Innervations Exam Questions Correct Answers Current Update (A+ Pass)
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NWHSU PNS Autonomic Innervations Exam Questions Correct Answers Current Update (A+ Pass) Which axons are found in the IML? - Answers - pre ggl sympathetic Which axons in the short ciliary nerves? - Answers - post ggl parasympathetic post ggl sympathetic Which axons in the superior cervica...

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  • October 13, 2024
  • 21
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nwhsu pns autonomic innervations
  • nwhsu pns autonomic innervations exam
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NWHSU PNS Autonomic Innervations
Exam Questions Correct Answers
Current Update (A+ Pass)
Which axons are found in the IML? - Answers -✔✔ pre ggl sympathetic

Which axons in the short ciliary nerves? - Answers -✔✔ post ggl parasympathetic
post ggl sympathetic

Which axons in the superior cervical ggl? - Answers -✔✔ pre sympathetic
post sympathetic

Which cell bodies in the superior cervical ggl? - Answers -✔✔ post sympathetic

Which axons in the ciliary ggl? - Answers -✔✔ pre parasymp
post parasymp
post symp

Which cell bodies in the ciliary ggl? - Answers -✔✔ post parasymp

Which cell bodies in the Edinger-Westphal nucleus? - Answers -✔✔ pre parasymp

Which cranial nerve supplies the innervation of the eye? - Answers -✔✔ CN 3

Parasympathetic stimulation has what functions in the eye? - Answers -✔✔
Constriction
Accommodation

Sympathetic stimulation has what function in the eye? - Answers -✔✔ Dilation

CN 3 leaves the skull via what foramen? - Answers -✔✔ Superior orbital fissure

The ciliary ggl is what type of ganglion? - Answers -✔✔ Terminal ggl
(or parasympathetic ggl)

Sympathetics innervating the ciliary bodies and iris originate from which spinal
segment? - Answers -✔✔ T1

Sympathetics innervating the ciliary bodies and iris exit the sympathetic chain via this
ganglion - Answers -✔✔ Superior cervical ganglion

,Which axons in the IML bound for superior cervical ggl? - Answers -✔✔ pre symp

Which cell bodies in the IML bound for superior cervical ggl? - Answers -✔✔ pre symp

Which axons in the branch of V2 (maxillary) innervating the Lacrimal gland? - Answers -
✔✔ post parasymp
post symp

Which axons in the sphenopalatine ggl? - Answers -✔✔ pre parasymp
post parasymp
post symp

Which cell bodies in the sphenopalatine ggl? - Answers -✔✔ post parasymp

The sphenopalatine ggl is what type of ganglion? - Answers -✔✔ Terminal ggl
(or parasymp ggl)

Sympathetic NTx, receptor, and function on dilator pupillae (radial) muscles of the iris -
Answers -✔✔ NE @ a1+
= pupillary dilation

Sympathetic NTx, receptor, and function on peripheral vascular vessels of the iris -
Answers -✔✔ NE @ a1+
= vasoconstriction

Parasympathetic ntx, receptor, and function on ciliary body muscles - Answers -✔✔
ACh @ M1+
= accommodation for near vision

Parasympathetic ntx, receptor, and function on sphincter pupillae muscle of the iris -
Answers -✔✔ ACh @ M1+
= pupillary constriction

Which axons are in the deep petrosal nerve? - Answers -✔✔ post symp

Which axons are in the greater petrosal nerve? - Answers -✔✔ pre parasymp

Origins of CN 7 - Answers -✔✔ Superior Salivatory nucleus

Origins of CN 3 - Answers -✔✔ Edinger-Westphal nucleus

CN 7 exits the skull via this foramen - Answers -✔✔ Internal auditory meatus (IAM)

, Sympathetics innervating the lacrimal gland most likely have this segmental origin -
Answers -✔✔ T1 (IML)

Parasympathetic stimulation of the lacrimal gland causes... - Answers -✔✔ Protective
tears: lytic enzymes destroy particles/bacteria on surface of the eye
(excitatory, M3, ACh)

Sympathetic stimulation of the lacrimal gland causes... - Answers -✔✔ Emotional tears:
release of enkephalin - vasoconstriction
(excitatory, a1, NE)

The Deep petrosal nerve contains which axons?
What organ is to be innervated? - Answers -✔✔ post ggl sympathetics
lacrimal gland

The Greater petrosal nerve contains which axons?
What organ is to be innervated? - Answers -✔✔ pre ggl. parasympathetics
lacrimal gland

Post-ganglionic Parasympathetic and Sympathetic axons innervating the lacrimal gland
are collectively named - Answers -✔✔ V2 (maxillary br. of trigeminal)

Which axons in the submandibular ggl? - Answers -✔✔ pre parasymp
post parasymp

Which cell bodies in the submandibular ggl? - Answers -✔✔ post parasymp

Sympathetic innervation of the salivary glands has what segmental origin? - Answers -
✔✔ T1 (IML)

Concerning the innervation of the salivary gland:
post ganglionic sympathetic cell bodies are found here - Answers -✔✔ Superior
cervical ganglion

Parasympathetic stimulation of the salivary gland causes - Answers -✔✔ secretion of
digestive enzymes: CHO & fats
(excitatory, M3, ACh)

Sympathetic stimulation of the salivary gland causes - Answers -✔✔ Vasoconstriction:
reducing H2O content -> saliva more sticky
(excitatory, a1, NE)

Concerning the innervation of the salivary gland:
pre ganglionic parasympathetic cell bodies found here - Answers -✔✔ superior
salivatory nucleus (pons)

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