Glands & Ganglia

Question 1

Describe the parasympathetic innervation to the lacrimal gland.

Answer 1

• -nervus intermedius of CN VII
• -greater petrosal nerve
• -nerve of pterygoid canal
• -pterygopalatine ganglion
• -(follow the zygomaticotemporal & lacrimal nerve)
• -lacrimal gland

Question 2

Describe the parasympathetic innervation to the submandibular gland.

Answer 2

• -nervus intermedius of CN VII
• -chorda tympani
• -lingual nerve
• -submandibular ganglion
• -(follow blood vessels)
• -submandibular gland

Question 3

Describe the parasympathetic innervation to the parotid gland.

Answer 3

• -CN IX
• -tympanic nerve
• -tympanic plexus
• -lesser petrosal nerve
• -otic ganglion
• -(auriculotemporal)
• -parotid gland

Question 4

Describe the parasympathetic innervation to the pharyngeal mucous glands.

Answer 4

• -CN X
• -pharyngeal plexus
• -intramural ganglia
• -pharyngeal mucous glands

Question 5

Describe the parasympathetic innervation to the laryngeal mucous glands.

Answer 5

• -CN X
• -internal laryngeal nerve & recurrent laryngeal nerve
• -intramural ganglia
• -laryngeal mucous glands

Question 6

How many sympathetic ganglia are in the head?

Answer 6

zero - sympathetic neurons are located in the superior cervical ganglia of the neck

Question 7

What ganglion carries parasympathetic fibers associated with CN III?

Answer 7

ciliary ganglion

Question 8

What are the smooth muscle targets of the postganglionic fibers of the ciliary ganglion?

Answer 8

ciliary muscle (lens)
constrictor pupillae muscle (iris)

Question 9

What ganglia carry parasympathetic fibers associated with CN VII?

Answer 9

pterygopalatine ganglion

submandibular ganglion

Question 10

What ganglion carries parasympathetic fibers associated with CN IX?

Answer 10

otic ganglion

Question 11

What nerve contains preganglionic parasympathetic fibers between the nervus intermedius and the pterygopalatine ganglion?

Answer 11

greater petrosal nerve

Question 12

Where are postganglionic fibers from the pterygopalatine ganglion going?

Answer 12

lacrimal gland
mucosa of the nasal cavity
minor salivary glands of the roof of the mouth

Question 13

What nerve carries preganglionic fibers between the nervus intermedius and the submandibular ganglion?

Answer 13

chorda tympani

Question 14

Where are postganglionic fibers from the submandibular ganglion going?

Answer 14

submandibular gland
sublingual gland
minor salivary glands of the floor of the oral cavity

Question 15

What nerve carries preganglionic fibers between the tympanic nerve and the otic ganglion?

Answer 15

lesser petrosal nerve

Question 16

Where are postganglionic fibers from the otic ganglion going?

Answer 16

parotid gland

Question 17

What nerve do the postganglionic fibers from the otic ganglion to the parotid gland hitchhike with?

Answer 17

auriculotemporal nerve

Question 18

What nerve do the postganglionic fibers from the pterygopalatine ganglion to the lacrimal gland hitchhike with?

Answer 18

zygomaticotemporal nerve

Question 19

What ganglion transmits all of the parasympathetic fibers traveling to glands above the oral fissure?

Answer 19

pterygopalatine ganglion

Question 20

What ganglion transmits all of the parasympathetic fibers traveling to glands below the oral fissure?

Answer 20

submandibular ganglion

Question 21

The submandibular gland wraps around what muscle?

Answer 21

mylohyoid muscle