Cranial Nerves

Front 1

CN I name

Back 1

Olfactory

Front 2

CN II name

Back 2

Optic

Front 3

CN III name

Back 3

Oculomotor

Front 4

CN IV name

Back 4

Trochlear

Front 5

CN V name

Back 5

Trigeminal

Front 6

CN V1name

Back 6

Ophthalmic

Front 7

CN V2 name

Back 7

Maxillary

Front 8

CN V3 name

Back 8

Mandibular

Front 9

CN VI name

Back 9

Abducens

Front 10

CN VII name

Back 10

Facial

Front 11

CN VIII name

Back 11

Vestibulo-cochlear

Front 12

CN IX name

Back 12

Glosso-pharyngeal

Front 13

CN X name

Back 13

Vagus

Front 14

CN XI name

Back 14

Accessory

Front 15

CN XII name

Back 15

Hypoglossal

Front 16

Sympathetic innervation of the head

Back 16

Carotid n., etc.

Front 17

Olfactory Course and features in cranial cavity

Back 17

Olfactory tract is not olfactory nerve (the nerves are too short to be seen)

Front 18

Optic Course and features in cranial cavity

Back 18

"Optic chiasm

Front 19

Optic tract"

Back 19

Course and features in cranial cavity

Front 20

Oculomotor Course and features in cranial cavity

Back 20

"Interpeduncular fossa

Front 21

Cavernous sinus"

Back 21

Course and features in cranial cavity

Front 22

Trochlear Course and features in cranial cavity

Back 22

"Tentorium cerebelli

Front 23

Cavernous sinus"

Back 23

Course and features in cranial cavity

Front 24

Trigeminal Course and features in cranial cavity

Back 24

"Tentorium cerebelli

Front 25

Middle cranial fossa"

Back 25

Course and features in cranial cavity

Front 26

Ophthalmic Course and features in cranial cavity

Back 26

"Middle cranial fossa

Front 27

Cavernous sinus"

Back 27

Course and features in cranial cavity

Front 28

Maxillary Course and features in cranial cavity

Back 28

Middle cranial fossa

Front 29

Mandibular Course and features in cranial cavity

Back 29

Middle cranial fossa

Front 30

Abducens Course and features in cranial cavity

Back 30

"Clivus

Front 31

Cavernous sinus"

Back 31

Course and features in cranial cavity

Front 32

Facial Course and features in cranial cavity

Back 32

Posterior cranial fossa

Front 33

Vestibulo-cochlear Course and features in cranial cavity

Back 33

Posterior cranial fossa

Front 34

Glosso-pharyngeal Course and features in cranial cavity

Back 34

"Posterior cranial fossa

Front 35

(Roots are not obviously distinct from vagus nerve roots)"

Back 35

Course and features in cranial cavity

Front 36

Vagus Course and features in cranial cavity

Back 36

"Posterior cranial fossa

Front 37

(Roots are not obviously distinct from glossopharyngeal nerve roots)"

Back 37

Course and features in cranial cavity

Front 38

Accessory Course and features in cranial cavity

Back 38

"Vertebral canal

Front 39

Posterior cranial fossa"

Back 39

Course and features in cranial cavity

Front 40

Hypoglossal Course and features in cranial cavity

Back 40

"Posterior cranial fossa near foramen magnum

Front 41

(The next nerve is the C1 spinal nerve)"

Back 41

Course and features in cranial cavity

Front 42

Carotid n., etc. Course and features in cranial cavity

Back 42

Accompanying branches of internal carotid a. (and vertebral a.)

Front 43

Olfactory Skull Bone

Back 43

Ethmoid bone

Front 44

Optic Skull Bone

Back 44

Sphenoid bone

Front 45

Oculomotor Skull Bone

Back 45

Sphenoid bone

Front 46

Trochlear Skull Bone

Back 46

Sphenoid bone

Front 47

Trigeminal Skull Bone

Back 47

Temporal bone

Front 48

Ophthalmic Skull Bone

Back 48

Sphenoid bone

Front 49

Maxillary Skull Bone

Back 49

Sphenoid bone

Front 50

Mandibular Skull Bone

Back 50

Sphenoid bone

Front 51

Abducens Skull Bone

Back 51

Sphenoid bone

Front 52

Facial Skull Bone

Back 52

Temporal bone

Front 53

Vestibulo-cochlear Skull Bone

Back 53

Temporal bone

Front 54

Glosso-pharyngeal Skull Bone

Back 54

Temporal bone

Front 55

Vagus Skull Bone

Back 55

Between petrous temporal bone and occipital bone

Front 56

Accessory Skull Bone

Back 56

Between petrous temporal bone and occipital bone

Front 57

Hypoglossal Skull Bone

Back 57

Occipital bone

Front 58

Carotid n., etc. Skull Bone

Back 58

"Temporal bone

Front 59

Sphenoid bone"

Back 59

Skull Bone

Front 60

Olfactory Passage through skull

Back 60

"Cribriform plate

Front 61

Nasal septum"

Back 61

Passage through skull

Front 62

Optic Passage through skull

Back 62

Optic canal

Front 63

Oculomotor Passage through skull

Back 63

Superior orbital fissure

Front 64

Trochlear

Back 64

Superior orbital fissure

Front 65

Trigeminal Passage through skull

Back 65

On superior surface of petrous part of temporal bone

Front 66

Ophthalmic Passage through skull

Back 66

Superior orbital fissure

Front 67

Maxillary Passage through skull

Back 67

Foramen rotundum

Front 68

Mandibular Passage through skull

Back 68

Foramen ovale

Front 69

Abducens Passage through skull

Back 69

Superior orbital fissure

Front 70

Facial Passage through skull

Back 70

Internal auditory meatus

Front 71

Vestibulo-cochlear Passage through skull

Back 71

Internal auditory meatus

Front 72

Glosso-pharyngeal Passage through skull

Back 72

Jugular foramen

Front 73

Vagus Passage through skull

Back 73

Jugular foramen

Front 74

Accessory Passage through skull

Back 74

Jugular foramen

Front 75

Hypoglossal Passage through skull

Back 75

Hypoglossal canal

Front 76

Carotid n., etc. Passage through skull

Back 76

"Carotid canal

Front 77

Optic canal for ophthalmic arterial plexus"

Back 77

Passage through skull

Front 78

Olfactory Function

Back 78

Olfaction

Front 79

Optic Function

Back 79

Vision

Front 80

Oculomotor Function

Back 80

"Somatic motor (eye movements, upper eyelid elevation)

Front 81

Parasympathetic"

Back 81

Function

Front 82

Trochlear Function

Back 82

Somatic motor

Front 83

Trigeminal Function

Back 83

"General sensory

Front 84

Somatic motor"

Back 84

Function

Front 85

Ophthalmic Function

Back 85

General sensory

Front 86

Maxillary Function

Back 86

General sensory

Front 87

Mandibular Function

Back 87

"General sensory

Front 88

Somatic motor"

Back 88

Function

Front 89

Abducens Function

Back 89

Somatic motor

Front 90

Facial Function

Back 90

"Somatic motor

Front 91

General sensory (minimal)"

Back 91

Function

Front 92

Vestibulo-cochlear Function

Back 92

"Head position and movement

Front 93

Audition"

Back 93

Function

Front 94

Glosso-pharyngeal Function

Back 94

"Somatic motor

Front 95

General sensory"

Back 95

Function

Front 96

Vagus Function

Back 96

"Somatic motor

Front 97

General sensory"

Back 97

Function

Front 98

Accessory Function

Back 98

"Somatic motor (contralateral head rotation)

Front 99

Somatic motor (ipsilateral shoulder elevation)"

Back 99

Function

Front 100

Hypoglossal Function

Back 100

Somatic motor (tongue movements, esp. protraction)

Front 101

Carotid n., etc. Function

Back 101

"Dilation of pupil

Front 102

Blood supply of brain, deep face and face"

Back 102

Function

Front 103

Olfactory Target Organs

Back 103

Epithelium of nasal walls

Front 104

Optic Target Organs

Back 104

Retina of eye

Front 105

Oculomotor Target Organs

Back 105

"Extraocular mm.

Front 106

Constrictor pupillae m. of iris"

Back 106

Target Organs

Front 107

Trochlear Target Organs

Back 107

Superior oblique m. (of eye)

Front 108

Trigeminal Target Organs

Back 108

"Internal structures of head, face

Front 109

Mm. of mastication, etc."

Back 109

Target Organs

Front 110

Ophthalmic Target Organs

Back 110

"Orbit, eye

Front 111

Superior palpebrum (upper eyelid) and forehead"

Back 111

Target Organs

Front 112

Maxillary Target Organs

Back 112

"Nasal cavity

Front 113

Cheek"

Back 113

Target Organs

Front 114

Mandibular Target Organs

Back 114

"Oral cavity

Front 115

Mm. of mastication; etc."

Back 115

Target Organs

Front 116

Abducens Target Organs

Back 116

Lateral rectus m.

Front 117

Facial Target Organs

Back 117

"Mm. of facial expression, etc.

Front 118

Tongue"

Back 118

Target Organs

Front 119

Vestibulo-cochlear Target Organs

Back 119

"Vestibular apparatus of inner ear

Front 120

Cochlea of inner ear"

Back 120

Target Organs

Front 121

Glosso-pharyngeal Target Organs

Back 121

"Stylopharyngeus m.

Front 122

Tongue, pharyngeal wall and middle ear"

Back 122

Target Organs

Front 123

Vagus Target Organs

Back 123

"Mm. in head and neck including pharyngeal mm and laryngeal mm.

Front 124

Abdominal viscera"

Back 124

Target Organs

Front 125

Accessory Target Organs

Back 125

"Sternocleidomastoid m.

Front 126

Trapezius m."

Back 126

Target Organs

Front 127

Hypoglossal Target Organs

Back 127

Genioglossus m., etc.

Front 128

Carotid n., etc. Target Organs

Back 128

"Dilator pupillae m. of iris

Front 129

Blood vessels of head including brain"

Back 129

Target Organs