Cranial Nerves (Parker)

Question 1

What are the autonomics of the head?

Answer 1

CN 3, 7, 9, 10 ONLY

Question 2

What parasympathetic Ganglia are in the head?

Answer 2

"COPS"
Ciliary - CN 3
Otic - CN 9 
Pterygopalatine - CN 7
Submandibular - CN 7

Question 3

Where did any sympathetic in the head come from?

Answer 3

Lateral Horn of T1-T2 Gray Matter

Question 4

Where do the preganglionic sympathetics synapse to innervate visceral structures of the head?

Answer 4

• Synapse in the Superior Cervical Ganglion

Question 5

How do sympathetics distribute to their targets in the head after synapsing?

Answer 5

• Travel on Branches of the Internal and External Carotid

Question 6

T or F: CNX distributes parasympathetic fibers to the head

Answer 6

FALSE, it does thorax, foregut, and midgut

Question 7

What nerves do special sensory in the head?

Answer 7

1, 2, 7, 8, 9, 10

Question 8

What Sensory ganglia is associated with the Trigeminal n. (CN V1, V2, V3)

Answer 8

Trigeminal (semilunar) ganglion

Question 9

What sensory ganglia is associated with the Facial n. (CN VII)

Answer 9

Geniculate Ganglion

Question 10

What sensory ganglia is associated with the Vestibulocochlear n. (CN VIII)

Answer 10

Spiral ganglion and Vestibular Ganglion

Question 11

What sensory ganglia is associated with the Glossopharyngeal n. (CN IX)

Answer 11

Superior and Inferior Ganglia of CN IX

Question 12

What sensory ganglia is associated with the Vagus n. (CN X)

Answer 12

Superior and Inferior Ganglia of CN X

Question 13

What type of motor innervation is given to muscles derived from the pharyngeal arches?

Answer 13

Branchiomeric Efferent (BE)

Question 14

What is innervated by the BE component of CN V3?

- Muscles?

Answer 14

First Arch - mast-matt

• Muscles of MASTiscation
• Mylohyoid, Anterior digastric muscle, Tensor tympani, Tensor veli palatini

Question 15

What is innervated by the BE component of CN VII?

Answer 15

Second Arch

• Posterior digastric muscle
• stylohyoid
• muscles of fascial expression
• stapedius m. of middle ear

Question 16

What is innervated by the BE component of CN IX?

Answer 16

Third Arch

- Stylopharyngeus muscle

Question 17

What is innervated by the BE component of CN X?

Answer 17

Fourth and Sixth Arches

• All muscles of larynx (X)
• All muscles of Pharynx, except stylopharyngeus (IX)
• All muscles of palate, except tensor vili palatini (first arch, V3)

Question 18

What structures are innervated by GSE components of Cranial Nerves?

Answer 18

• Skeletal Muscle of TONGUE (except palatoglossus)
• Skeletal mm. of the EYE
• SCM
• TRAPS

**THES ARE ALL SOMITE MESODERM

Question 19

T or F: the three sensory only fibers all are GSA ONLY

Answer 19

FALSE, they are SA ONLY

Question 20

What are the motor only neurons?

- what the only one that has GVE too?

Answer 20

3, 4, 6, 11, 12

**ONLY Three is GVE (parasympathetic) too