Introduction To Cranial Nerves

Front 1

What are the 12 pairs of cranial nerve?

Back 1

olfactory, optic, oculomotor, trochlear, trigeminal, abducent, fascial, vestibulocochlear, glossopharyngeal, vagus, accessory, and hypoglossal

Front 2

What is the mnemonic for the 12 pairs of cranial nerves?

Back 2

Oh Once One Takes The Anatomy Final Very Good Vacations Are Heavenly.

Front 3

what is the function of GSE?

Back 3

motor to skeletal muscles that develop from somites

Front 4

What is the function of GVE?

Back 4

motor to smooth muscle, glands and cardiac muscle

Front 5

what is the function of GSA?

Back 5

sensory from the body surface or the musculoskeletal -- pain, temperature, touch, position (proprioception)

Front 6

what is the function of GVA?

Back 6

sensory from smooth muscle, glands and cardiac muscle

Front 7

what is the function of the SVE or the brachiomotor?

Back 7

motor to skeletal muscles that originate embryonically from the pharyngeal arches

Front 8

what is the function of the SSA?

Back 8

special somatic afferent for vision, hearing, and balance

Front 9

what is the function of SVA?

Back 9

special visceral afferent for scent and taste

Front 10

what 5 cranial nerves have GSE nerve fibers?

Back 10

III, IV, IV, XI, and XII

Front 11

what 4 cranial nerves have GVE fibers?

Back 11

III, VII, IX, and X

Front 12

what 4 cranial nerves have GSA fibers?

Back 12

V, VII, IX, X

Front 13

what 2 cranial nerves have GVA fibers?

Back 13

IX and X

Front 14

what 4 cranial nerves have SVE fibers?

Back 14

V, VII, IX, and X

Front 15

what 2 cranial nerves have SSA fibers?

Back 15

II and VIII

Front 16

what 4 cranial nerves have SVA fibers?

Back 16

I, VII, IX and X

Front 17

how do you determine what the functional components of a cranial nerve are?

Back 17

if its in a cranial nerve then it contains all of the nerves present at the site of attachment; if it is a branch then it contains the nerves specific for that location being discussed.

Front 18

are the sympathetic fibers in the head post-ganglionic or pre-ganglionic fibers? where are the cell bodies?

Back 18

post-ganglionic; superior cervical sympathetic ganglion

Front 19

how are the sympathetic fibers distributed to all areas of the head?

Back 19

via branches of the periarterial nerve plexuses around the external and internal carotid arteries.

Front 20

what 4 cranial nerves do parasympathetic fibers originate from?

Back 20

III, VII, IX, and X

Front 21

what is the only cranial nerve where parasympathetic GVEs and GVAs run together?

Back 21

vagus

Front 22

what are the 2 cranial nerves that have a large amount of GVAs fibers?

Back 22

IX and X

Front 23

In CN III, via parasympathetic innervation, what is the ganglion and the target organ?

Back 23

ganglion: ciliary, target organ: intrinsic eye muscles

Front 24

In CN VII, via parasympathetic innervation, what is the branch and the target organ if the ganglion is specified as the pterygopalatine?

Back 24

branch: maxillary; target organ: Lacrimal gland, nasal cavity, maxillary sinus, palate

Front 25

In CN VII, via parasympathetic innervation, what is the branch and the target organ if the ganglion is specified as the submandibular?

Back 25

branch: mandibular; target organ: Submandibular and sublingual glands

Front 26

In CN IX, via parasympathetic innervation, what is the ganglion and the target organ?

Back 26

ganglion: otic; branch: mandibular; Target organ: parotid gland

Front 27

T/F
some branches of the trigeminal nerve and the trigeminal nerve itself do contain parasympathetic fibers.

Back 27

FALSE!
only some branches of the trigeminal nerve contain parasympathetic fibers

Front 28

what is the pathway of the olfactory nerve?

Back 28

they begin in the nasal mucosa traversing the cribform plate of the ethmoid bone to reach the olfactory bulb in the anterior cranial fossa.

Front 29

what type of fibers are found in the optic nerve and where are they formed?

Back 29

SSA; axons of ganglion cells of the nervous retina that converge at the optic disc.

Front 30

at the optic chiasm, which half of the optic nerve crosses?

Back 30

nasal half

Front 31

what 3 muscles innervate the extraocular muscles?

Back 31

III, IV, and VI

Front 32

what is the main sensory nerve of the face?

Back 32

trigeminal nerve

Front 33

what does the trigeminal nerve supply?

Back 33

it supplies most of the oral cavity and nasal cavities; it innervates the muscles of mastication and other muscles that develop from the first pharyngeal arch

Front 34

the sensory part of the trigeminal nerve contains how many divisions? what are they?

Back 34

3; opthalamic nerve (v1), maxillary nerve (V2), and mandibular division (v3)

Front 35

what is the sensory nerve of the orbit and forehead?

Back 35

Opthalamic nerve (v1)

Front 36

what is the sensory nerve to the middle face? What type of fibers does it supply to the nasal and orbit cavities?

Back 36

maxillary nerve (V2)

Front 37

what innervates the muscles of the first pharyngeal arch and is sensory to the oral cavity, lower 1/3 of the face and temple?

Back 37

mandibular division (v3)

Front 38

what nerve innervates the muscles used for facial expressions?

Back 38

facial nerve

Front 39

what type of parasympathetic fibers are carried by facial nerves? where are they carried to?

Back 39

pre-ganglionic; carried to the lacrimal gland, submandibular and sublingual salivary glands.

Front 40

the facial nerve also carries one of the 5 senses, which one? from where?

Back 40

taste from the anterior 2/3s of the tongue

Front 41

what nerve carries not only taste, but general sensation from the oropharynx?

Back 41

glossopharyngeal

Front 42

what part of the tongue is covered by the glossopharyngeal nerve?

Back 42

posterior 1/3

Front 43

what type of parasympathetic fibers are carried by the glossopharygneal nerve? where to?

Back 43

pre-ganglionic; parotid gland

Front 44

what muscle is innervated by the glossopharyngeal nerve?

Back 44

stylopharyngeus

Front 45

T/F
GVA fibers are provided to the carotid body and sinus via the glossopharyngeal nerve.

Back 45

True!

Front 46

where does vestibulocochlear carry its nerve fibers from and to? what are those nerve fibers?

Back 46

from inner ear to the brain; SSA

Front 47

what 2 muscles does the accessory spinal nerve innervate?

Back 47

the trapezius and sternocleidomastoid muscles

Front 48

what innervates the intrinsic and extrinsic muscles of the tongue?

Back 48

hypoglossal nerve