Cranial Nerve Spreadsheet Flashcards
1
Q
CNS origin of CN I, olfactory?
A
Forebrain (telencephalon)
2
Q
Cells of origin of CN I, olfactory?
A
Nasal mucosa
3
Q
Opening from skull for CN I, olfactory?
A
Cribriform foramina
4
Q
Ganglion/main central connection of CN I, olfactory?
A
Olfactory bulb/medial temporal lobe
5
Q
Axon function of CN I, olfactory?
A
Sensory (smell)
6
Q
Distribution of CN I, olfactory?
A
Olfactory mucosa of nose
7
Q
Lesions/signs for CN I, olfactory?
A
Anosmia
8
Q
CN I, olfactory is tested by?
A
Pungent odor
9
Q
CNS origin of CN II, optic?
A
Forebrain (diencephalon)
10
Q
Cells of origin of CN II, optic?
A
Ganglion cells retina
11
Q
Opening from skull for CN II, optic?
A
Optic canal?
12
Q
Ganglion/main central connection of CN II, optic?
A
Lateral genticulate nucleus
13
Q
Primary branch(es) of CN II, optic?
A
Optic chiasm & tract
14
Q
Axon functions of CN II, optic?
A
Sensory (vision)
15
Q
Distribution of CN II, optic?
A
Retina of the eye
16
Q
Lesions/signs for CN II, optic
A
Unilateral blindness (n.), bitemporal hemianopsia (chiasm), homonymous hemianopsia (tract).
17
Q
CNS origin of CN III, oculomotor?
A
Midbrain
18
Q
Cells of origin for superior ramus of CN III, oculomotor?
A
Oculomotor nucleus
19
Q
Exit from skull for CN III, oculomotor?
A
Superior orbital fissure
20
Q
Ganglion for inferior ramus of CN III, oculomotor?
A
Ciliary
21
Q
Primary branch(es) of CN III, oculomotor?
A
Superior and inferior rami (via short ciliary)
22
Q
Axon functions of superior ramus of CN III, oculomotor?
A
Motor
23
Q
Axon functions of inferior ramus of CN III, oculomotor?
A
Preganglionic parasympathetic
24
Q
Distribution of motor axons of CN III, oculomotor?
A
(superior ramus)
- Levator Palpebrae Superioris
- Superior Rectus
(inferior ramus)
- Medial Rectus
- Inferior Rectus
- Inferior Oblique
25
Distribution of preganglionic parasympathetic axons of CN III, oculomotor?
Ciliary bodies/muscle, sphincter papillae of iris (constriction)
26
Lesion/signs of CN III, oculomotor (motor)?
Ptosis
27
Lesion/signs of CN III oculomotor (pre-para)?
No pupillary reflex, mydriasis
28
Postganglionic sympathetic origin of CN III, oculomotor?
Cavernous sinus
29
CNS origin of CN IV, trochlear?
Midbrain
30
Cells of origin of CN IV, trochlear?
Trochlear nucleus (contralateral)
31
Exit from skull for CN IV, trochlear?
Superior orbital fissure
32
Axon functions of CN IV, trochlear?
Motor
33
Distribution of CN IV, trochlear?
Superior oblique
34
Lesions/signs for CN IV, trochlear?
Diplopia
35
Postganglionic sympathetic origin of CN IV, trochlear?
Cavernous Sinus
36
CNS level of CN V, trigeminal?
Pons
37
Cells of origin of CN V, trigeminal?
Trigeminal ganglion (trigeminal motor for mandibular branchial motor)
38
Exit from skull for CN V, trigeminal (ophthalmic)?
Superior orbital fissure
39
Exit from skull for CN V, trigeminal (maxillary)?
Foramen rotundum
40
Exit from skull for CN V, trigeminal (mandibular)?
Foramen ovale
41
Ganglion/main central connection for CN V, trigeminal?
Trigeminal sensory nucleus (excludes mandibular branchial motor)
42
Primary branches of CN V, trigeminal (ophthalmic)
Lacrimal, nasociliary, frontal
43
Primary branches of CN V, trigeminal (maxillary)
Infraorbital, pterygopalatine brr.
44
Primary branches of CN V, trigeminal (mandibular branchial motor)
Inf. alveolar, deep temporal, masseteric, pterygoids.
45
Primary branches of CN V, trigeminal (mandibular sensory)
Inf. alveolar, lingual, auriculotemporal
46
Axon functions of CN V, trigeminal?
All sensory except mandibular has branchial motor function
47
Distribution of CN V, trigeminal (ophthalmic)?
Skin, lacrimal gland, nasal cavity, conjunctiva, cornea
48
Distribution of CN V, trigeminal (maxillary)?
Skin mid face, teeth, mucous membranes, upper mouth palate, nasopharynx.
49
Distribution of CN V, trigeminal (mandibular branchial motor)?
Mastication mm, mylohyoid, ant. digastric, tensor tympani, tensor veli palatini (1st pharyngeal arch).
50
Distribution of CN V, trigeminal (mandibular sensory)?
Skin low face, tongue, mouth, mandibular teeth, ear.
51
Lesions/signs for CN V, trigeminal (ophthalmic)?
No blink (corneal) reflex, facial hemianesthesia
52
Lesions/signs for CN V, trigeminal (maxillary)?
Facial hemianesthesia
53
Lesions/signs for CN V, trigeminal (mandibular branchial motor)?
Jaw weakness, ipsilateral deviation of opened jaw.
54
Lesions/signs for CN V, trigeminal (mandibular sensory)?
Facial hemianesthesia
55
Postganglionic sympathetic origin for CN V, trigeminal (ophthalmic)?
Cavernous sinus
56
Postganglionic sympathetic origin for CN V, trigeminal (maxillary)?
Cavernous sinus, deep petrosal, external carotid plexus
57
Postganglionic sympathetic origin for CN V, trigeminal (mandibular)?
External carotid plexus
58
CNS origin of CN VI, abducens?
Pons
59
Cells of origin for CN VI, abducens?
Abducens
60
Exit from skull for CN VI, abducens?
Superior orbital fissure
61
Axon functions of CN VI, abducens?
Motor
62
Distribution of CN VI, abducens?
Lateral rectus
63
Lesions/signs for CN VI, abducens?
Diplopia, medial eye drift
64
Postganglionic sympathetic origin of CN IV, abducens?
Cavernous sinus
65
CNS origin of CN VII, facial?
Pons
66
Cells of origin for branchial motor part of CN VII, facial?
Facial motor nucleus
67
Cells of origin for pre-para part of CN VII, facial?
Superior salivary nucleus
68
Cells of origin for sensory part of CN VII, facial?
Genticulate ganglion
69
Exit from skull for motor part of CN VII, facial?
Internal Auditory Meatus, stylomastoid f.
70
Exit from skull for pre-para/sensory part of CN VII, facial?
Internal Auditory Meatus
71
Ganglia for CN VII, facial (pre-para)?
Pterygopalatine, submandibular
72
Ganglia for CN VII, facial (sensory)
Trigeminal Sensory nucleus
73
Ganglia for CN VII, facial (taste)
Nucleus solitarius
74
Primary branch of motor part of CN VII, facial?
Main root
75
Primary branch of pre-para part of CN VII, facial?
Chorda tympani
76
Primary branch of sensory part of CN VII, facial?
Palatine, posterior ear
77
Primary branch of taste part of CN VII, facial?
Lingual via chords tympani
78
Axon functions (4) of CN VII, facial?
Branchial motor, pre-para, sensory, taste.
79
Distribution of motor part of CN VII, facial?
Mm. of facial expression, stapedius, post.digastric, stylohyoid (2nd pharyngeal arch)
80
Distribution of pre-para part of CN VII, facial?
Lacrimal and mucosa glands of nasal cavity, paranasal sinuses, roof of mouth, soft palate, nasopharynx.
81
Distribution of sensory part of CN VII, facial?
Palate, skin of posterior ear, External Auditory Meatus, tympanic membrane, facial proprioception
82
Distribution of taste part of CN VII, facial?
Anterior 2/3 of tongue.
83
Postganglionic sympathetic origin of CN VII, facial?
External carotid plexus, direct from the superior cervical ganglion
84
CNS origin of CN IX, glossopharyngeal?
Medulla
85
Cells of origin for branchial motor part of CN IX, glossopharyngeal?
Nucleus ambiguous
86
Cells of origin for pre-para part of CN IX, glossopharyngeal?
Inferior salivary nucleus
87
Cells of origin for sensory part of CN IX, glossopharyngeal?
Inferior ganglion
88
Cells of origin for sensory visceral part of CN IX, glossopharyngeal?
Superior ganglion
89
Cells of origin for taste part of CN IX, glossopharyngeal?
Inferior ganglion
90
Exit from skull for CN IX, glossopharyngeal?
Jugular foramen
91
Ganglion / Main central connection of pre-para part of CN IX, glossopharyngeal
Otic
92
Ganglion / main central connection of sensory part of CN IX, glossopharyngeal
Trigeminal sensory nucleus
93
Ganglion / main central connection of visceral sensory part of CN IX, glossopharyngeal
Nucleus solitarius
94
Ganglion / main central connection of taste part of CN IX, glossopharyngeal
Nucleus solitarius
95
Axon functions of CN IX, glossopharyngeal
Branchial motor
pre-para
sensory
visceral sensory
taste
96
Peripheral structures of branchial motor part of CN IX, glossopharyngeal
Stylopharyngeus
superior pharyngeal constrictor
3rd pharyngeal arch
97
Peripheral structures of pre-para part of CN IX, glossopharyngeal
parotid gland
98
Peripheral structures of sensory part of CN IX, glossopharyngeal
Sensory posterior 1/3 of tongue
oropharynx
middle ear
tonsil bed
99
Peripheral structures of visceral sensory part of CN IX glossopharyngeal
chemoreception of oxygen and carbon dioxide at carotid body
baroreception at carotid sinus
100
Peripheral structures of taste part of CN IX, glossopharyngeal
taste posterior 1/3 of tongue
101
Post sympathetic origin for CN IX, glossopharyngeal
external carotid plexus, directly from superior cervical ganglion
102
CNS level for CN VIII, vestibulocochlear
Pons
103
Origin of equilibrium part of CN VIII, vestibulocochlear
Vestibular ganglion
104
Origin of hearing part of CN VIII, vestibulocochlear
Spiral ganglion
105
Opening in skull for CN VIII, Vestibulocochlear
Internal auditory meatus
106
Ganglion / main central connection for equilibrium part of CN VIII, vestibulocochlear
Vestibular nuclei of the cerebellum
107
Ganglion / main central connection for hearing part of CN VIII, vestibulocochlear
Dorsal/ventral cochlear nuclei
108
Axon functions of CN VIII, vestibulocochlear
Sensory equilibrium
Sensory hearing
109
Peripheral structures for equilibrium part of CN VIII, vestibulocochlear
Hair cells of ampullary crests in semicircular ducts
maculae of saccule/utricle
110
Peripheral structures for hearing part of CN VIII, vestibulocochlear
Hair cells of spiral organ (of corti)
111
CNS level of CN X, Vagus
Medulla
112
Origin of Branchial motor part of CN X Vagus
Nucleus ambiguus
113
Origin of pre-para part of CN X, Vagus
Dorsal motor
114
Origin of sensory part of CN X, Vagus
Superior ganglion
115
Origin of visceral sensory part of CN X, vagus
inferior ganglion
116
Origin of taste part of CN X, vagus
inferior ganglion
117
Skull opening for CN X, vagus
Jugular foramen
118
Ganglion / main central connection for pre-para part of CN X, vagus
neurons in, on, or near viscera
119
Ganglion / main central connection for sensory part of CN X, vagus
spinal trigeminal nucleus
120
Ganglion / main central connection for visceral sensory part of CN X, vagus
superior and inferior ganglion
121
Ganglion / main central connection for taste part of CN X, vagus
superior and inferior ganglion
122
Primary branches of branchial motor part of CN X, vagus
Pharyngeal
Superior laryngeal
recurrent laryngeal
123
Primary branches of pre-para part of CN X, vagus
internal laryngeal
recurrent laryngeal
vagal trunks
124
Primary branches of sensory part of CN X, vagus
auricular
meningeal
125
Primary branches of visceral part of CN X, vagus
cardiac branch
126
Primary branches of taste part of CN X, vagus
internal laryngeal
127
Axon functions of CN X, vagus
branchial motor
pre-para
sensory
visceral sensory
taste
128
Peripheral structures of branchial motor part of CN X, vagus
muscles of the pharynx
6th pharyngeal arch - intrinsic laryngeal muscles
palate
upper 2/3rd of esophagus
4th pharyngeal arch - cricothyroid & inferior pharyngeal constrictor
levator veli palatini
salphingopharyngeus
palatoglossus
palatopharyngeus
superior, middle, and inferior pharyngeal constrictors
129
Peripheral structures of pre-para part of CN X, vagus
smooth muscle viscera up to splenic flexure
130
Post sympathetic origin of CN X, vagus
External carotid plexus directly from superior cervical ganglion
131
Peripheral structures of sensory part of Cn X, vagus
skin of the ear
external auditory meatus
dura posterior cranial fossa
132
Peripheral structures of visceral sensory part of CN X, vagus
aortic arch baroreception
thorax viscera
abdominal viscera
133
Peripheral structures of taste part of CN X, vagus
Epiglottis
palate
134
CNS level of CN XI, accessory
Spinal cord (C1-5)
135
Opening in skull for CN XI, accesory
Jugular foramen
136
Origin of CN XI, accessory
Ventral horn (C1 - 5)
137
Axon function of CN XI, accessory
Motor
138
Peripheral structures of CN XI, accessory
sternocleidomastoid
trapezius
139
Post sympathetic origin of CN XI, accessory
Directly from superior cervical ganglion
140
CNS level of CN XII, hypoglossal
Medulla
141
Origin of CN XII, hypoglossal
Hypoglossal
142
Opening for CN XII, hypoglossal
hypoglossal canal
143
Axon functions of CN XII, hypoglossal
Motor
144
Peripheral structures of CN XII, hypoglossal
styloglossus
hyoglossus
genioglossus
intrinsic muscles of tongue (except palatoglossus)
145
Post sympathetic origin of CN XII, hypoglossal
external carotid plexus directly from superior cervical ganglion
