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Ultimate Cranial Nerves Flashcards

0
Q

Which is CNIX?

A

Glossopharyngeal

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1
Q

Which nerve passes through the foramen ovale?

A

CNV III Mandibular division of trigeminal

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2
Q

Which is nerve II?

A

Optic nerve

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3
Q

What are the visceral motor actions of CNVII?

A
  • Para innervation of submandibular and submandibular salivary glands - Lacrimal gland - Glands of nose and palate
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4
Q

What are the components of CNV 3?

A

Somatic (general) sensory and somatic (branchial) motor

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5
Q

Components of cranial nerve I?

A

Special sensory

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6
Q

What are the main somatic motor actions of CNIX?

A

Motor to stylopharyngeus assisting in swallowing

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7
Q

What is the action of visceral sensory components of CN X?

A

Visceral sensation of base of tongue, pharynx, larynx, trachea, bronchi, heart, oesophagus and stomach

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8
Q

How does cranial nerve exit the skull?

A

Foramina in cribiform plate of ethmoid bone

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9
Q

What are the actions of CNV2?

A

Somatic sensory - sensation of skin on faced over maxilla Includes upper lip, maxillary teeth, mucosa of the nose, maxillary sinuses and palate

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9
Q

How does CN X exit the skull?

A

Vagus exits through jugular foramen

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9
Q

Which nerve is responsible for striated muscle in superior 2/3 if oesophagus?

A

Vagus nerve

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10
Q

What is the special sensory action of CNIX?

A

Taste from posterior 1/3 of tongue

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11
Q

Which nerve is responsible for raising of superior eyelids?

A

Oculomotor nerve (Somatic motor component).

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12
Q

Which is CNV?

A

Trigeminal nerve

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12
Q

What is the somatic sensory function of cranial nerve IX?

A

Cutaneous sensation of external ear

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13
Q

What is the action of CNVI (6)

A

Somatic motor action of the lateral rectus muscle allowing lateral gaze of the eyes

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14
Q

Which nerve is responsible for muscle movement of larynx?

A

Vagus (X)

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15
Q

Which nerve is responsible for sensation of the temporomandibular joint?

A

Mandibular division of trigeminal CNV3

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15
Q

Which nerve is CNVI?

A

Abducent

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16
Q

What is the main visceral motor action of CNIX?

A

Parasympathetic innervation of parotid gland

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17
Q

Which nerve is CN X?

A

Vagus nerve

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18
Q

What are the actions of cranial nerve III?

A
  1. Somatic motor - to superior, inferior and medial recti, inferior oblique, and lavator palpebrae superiors muscles raising eyelids and directing gaze superiorly, inferiorly and medially. 2. Visceral motor - parasympathetic to sphincter pupillae and ciliary muscles constricting the pupil and accommodating-lens of the eye.
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18
Q

Which nerve provides motor for stylocleidomastoid muscles?

A

Accessory nerve XI

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19
Q

Where does CN XI exit the skull?

A

Accessory exits through jugular foramen

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19
Q

Which nerve innervates the palatoglossus muscle?

A

Vagus X

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20
Q

What exits through the Foramina in the cribiform plate of ethmoid?

A

The olfactory nerve (CNI)

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21
Q

Which nerve is responsible for the motor component of the scalp?

A

Facial nerve CNVII

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21
Q

What is the action of somatic general sensory components of CN X?

A

Sensation of auricle, external acoustic meatus and dura mater of posterior cranial fossa

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22
Q

What is the action of CN XII?

A

Motor to extrinsic and intrinsic muscles of tongue (not including palatoglossus)

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23
Q

How does CNV III exit the skull?

A

Through the foramen ovale

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24
Q

Which nerve is responsible for sensation of anterior 2/3 of the tongue?

A

Mandibular division of trigeminal CNV 3

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25
Q

How does CNVII exit the skull?

A

The motor and sensory part of the facial nerve enters by internal acoustic meatus close to the inner ear, runs through the facial canal and emerges from the stylomastoid foramen through the parotid gland where it divides into 5. (Does not innervate parotid)

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25
Q

Which nerve is responsible for para innervation of smooth muscle and glands of trachea, bronchi, digestive system, coronary arteries and nodes of conductive system?

A

Visceral motor if vagus

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25
Q

What are the components of CNXI?

A

Somatic motor (accessory)

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27
Q

How does CNIV exit the skull?

A

Through the superior orbital fissure

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28
Q

Which nerve is responsible for sensation of the cornea?

A

Opthalmic division of trigeminal (CNV 1)

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28
Q

What nerves exist the skull through the jugular foramen?

A
  1. Glossopharangeal (CNIX) 2. Vagus (CNX) 3. Accessory (CNXI)
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29
Q

What is the action of CNIV?

A

The trochlear nerve is responsible for motor to the superior oblique assisting direction of gaze inferolaterally.

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29
Q

Which nerve is responsible for motor to superior oblique of the eye?

A

CNIV Trochlear

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30
Q

What are the components of CNV 2?

A

Somatic (general) sensory

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31
Q

Which nerve is responsible for motor action of the mylohyoid muscle?

A

Mandibular division of trigeminal CNV3

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33
Q

How does CNV II exit the skull?

A

Through the foramen rotundum

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34
Q

Which nerve is responsible for sensation of the lower lip?

A

Mandibular division of trigeminal CNV3

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34
Q

Which nerve is responsible for motor action of lateral rectus directing gaze laterally?

A

The Abducent nerve CNVI

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34
Q

What is the action of CNVIII?

A
  • Vestibular sensation from semicircular ducts - Utricle - Saccule - Hearing from spiral organ (Cochlear) (Allows position of head movement)
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34
Q

Which nerve is responsible for visceral sensation of tongue base?

A

Visceral sensory vagus

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35
Q

Which nerve is responsible for constricting pupils and accommodate-lens of the eye?

A

Oculomotor (visceral motor parasympathetic innervation).

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35
Q

Which nerve is responsible for sensation of Mandibular teeth?

A

Mandibular division of trigeminal CNV3

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36
Q

Which nerve is responsible for the motor supply of stylohyoid muscle?

A

Facial CNVII

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37
Q

What are the motor actions of CNV 3?

A

Muscles of mastication, mylohyoid, anterior belly of digastric, tensor veli palatini and tensor tympani

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38
Q

Which nerve is responsible for taste from epiglottis and palate?

A

Special sensory vagus

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39
Q
A
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40
Q

What is the special sensory action of CN X?

A

Taste from epiglottis and palate

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41
Q

Which nerve is CN XII?

A

Hypoglossal nerve

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42
Q

How does CNVII exit the skull?

A

Through the internal acoustic meatus

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44
Q

Which nerve is responsible for sensation of the nose?

A

Opthalmic division of trigeminal (CNV 1)

45
Q

What are the components of CNVIII?

A

Special sensory (Vestibulocochlear)

46
Q

What are the sensory actions of CNV3?

A

Sensory - skin of face over the mandible, lower lip, Mandibular teeth, temporomandibular joint, musosa of mouth, anterior 2/3 of tongue

46
Q

Which nerve is responsible for para innervation of sublingual salivary gland?

A

Facial CNVII

47
Q

What exits through the optic canal?

A

Optic nerve (CNII)

48
Q

Which nerve is CNXI?

50
Q

Which nerve passes through the foramen rotundum?

A

CNV II Maxillary division of trigeminal

52
Q

Which nerve is responsible for sensation of the eyelids?

A

Opthalmic division of trigeminal (CNV 1)

54
Q

Which nerve is responsible for sensation of mouth mucosa?

A

Mandibular division of trigeminal CNV 3

55
Q

Which nerve is responsible for inferolateral direction of gaze?

A

CNIV Trochlear

56
Q

Which is cranial nerve VII?

A

Facial nerve

56
Q

Which nerve is responsible for movement of palate muscles?

A

Vagus (X) Not including tensor veli palatini, CNV iii Mandibular division of trigeminal

57
Q

Which nerves enters through the internal acoustic meatus and passes through but does not innervate the parotid gland?

A

CNVII Facial

59
Q

Which nerve is responsible for smell from nasal mucosa of the roof of the nasal cavities?

A

Olfactory nerve (CNI)

59
Q

Which nerve is CNVIII?

A

Vestibulocochlear

60
Q

Where does CNVI exit the skull?

A

The Abducent nerves exits the skull through the superior orbital fissure

62
Q

Which nerve is responsible for vision from the retina?

A

The optic nerve (CNII)

62
Q

Which nerve is responsible for visceral sensation of pharynx and middle ear?

A

Visceral sensory component of Glossopharyngeal (IX)

63
Q

Which nerve is responsible for para innervation of the lacrimal gland?

A

Facial CNVII

64
Q

Which nerve is responsible for parasympathetic innervation of the submandibular salivary gland?

A

Facial CNVII

66
Q

Which nerve is responsible for motor action of the tensor tympani muscle?

A

Mandibular division of trigeminal CNV3

67
Q

What is the action of the olfactory nerve?

A

Smell from nasal mucosa

67
Q

Which nerves exits through the stylomastoid foramen?

A

CNVII Facial

67
Q

What are the components of CNIX?

A

Glossopharyngeal - Somatic branchial motor - Visceral motor - Visceral sensory - Special sensory - Somatic general sensory

69
Q

Which nerve is responsible for the motor component of muscles of facial expression?

A

Facial nerve CNVII

71
Q

Which nerve is responsible for sensation of skin on the forehead?

A

Opthalmic division of the trigeminal nerve (CNV 1)

73
Q

What are the divisions of CNV?

A

CNV i - Opthalmic CNV ii - Maxillary CNV iii - Mandibular

75
Q

Which is cranial nerve IV?

A

CN 4 is the trochlear nerve

76
Q

What are the components of CNVI?

A

Somatic motor

77
Q

How does CNIX exit the skull?

A

Through the jugular foramen

78
Q

Which nerve is responsible for motor action of the tensor veli palatini muscle?

A

Mandibular division of trigeminal (CNV 3)

79
Q

How does CNV I exit the skull?

A

Opthalmic division of trigeminal exits through the superior orbital fissure

81
Q

What are the actions of somatic branchial motor components of CNVII?

A

Muscles of facial expression and scalp Supplies stapedius of middle ear Stylohyoid and posterior belly of digastric muscle

83
Q

What is cranial nerve I?

84
Q

What is the component of CNIV?

A

Trochlear nerve has somatic motor components

85
Q

How does the oculomotor nerve exit the skull?

A

Through the superior orbital fissure.

86
Q

Which nerve is responsible for motor action of the anterior belly of digastric muscle?

A

Mandibular division of trigeminal

87
Q

What is the action of cranial nerve XI?

A

Accessory provides motor to stylocleidomastoid and trapezius muscle

88
Q

How does the optic nerve exit the skull?

A

Through the optic Canal

89
Q

What are the components of CN X?

A

Vagus - Somatic branchial motor - Visceral motor - Visceral sensory - Special sensory - Somatic general sensory

89
Q

What are the components of the hypoglossal nerve?

A

Somatic motor

91
Q

Which nerve is responsible for motor supply to the posterior belly of digastric muscle?

A

Facial CNVII

92
Q

Which muscle is responsible for taste of anterior 2/3 of tongue and palate?

A

Facial CNVII

93
Q

What is the components of cranial nerve II?

A

Special sensory

94
Q

Which nerve is responsible for motor supply of inferior oblique of the eye?

A

Oculomotor (somatic)

96
Q

What are the actions of CNV1?

A

Opthalmic sensory - Sensation of the cornea, skin of forehead, scalp, eyelids, nose and mucosa of nasal cavity and paranasal sinuses

97
Q

Which nerve is responsible for the sensation of the skin overlying the maxillary bone?

A

Maxillary division of trigeminal (CNV 2)

98
Q

Which nerve is responsible for sensation of mucosa of nasal cavities and paranasal sinuses?

A

Opthalmic division of trigeminal nerve (CNV1)

99
Q

Which nerve is responsible for motor movement of muscles of the pharynx?

A

Vagus (CN X) Apart from stylopharyngeus which is Glossopharyngeal

100
Q

Which nerve is responsible for the motor action of the muscles of mastication?

A

Mandibular division of trigeminal nerve CNV3

101
Q

Which nerve is responsible for sensation of maxillary sinuses?

A

Maxillary division of trigeminal nerve (CNV2)

101
Q

What are the actions of the somatic sensory CNVII?

A

Taste from anterior 2/3 of tongue and palate

102
Q

Which nerve is responsible for motor supply of the stylopharyngeus assisting in swallowing?

A

Somatic branchial motor component of Glossopharyngeal (IX)

104
Q

What are the components of the third cranial nerve?

A
  1. Somatic motor 2. Visceral motor
104
Q

Which nerve is responsible for the sensation of the scalp?

A

Opthalmic division of trigeminal (CNV 1)

106
Q

What is the visceral motor action of CN X?

A

Parasympathetic innervation to smooth muscle and glands of trachea, bronchi, digestive tract, coronary arteries and nodes of conduction system of the heart

107
Q

Which nerve is responsible for sensation of maxillary teeth?

A

Maxillary division of trigeminal (CNV2)

108
Q

What are the components of CNV 1?

A

Somatic (general) sensory

110
Q

Which nerve is responsible for visceral sensation of the carotid body and sinus?

A

Visceral sensory of Glossopharyngeal (IX)

111
Q

Which nerve is responsible for sensation of dura mater of posterior cranial fossa?

A

Somatic general sensory vagus

112
Q

Which nerve is responsible for motor innervation of intrinsic and extrinsic muscles of the tongue?

A

Hypoglossal (CN XII) Not including palatoglossus

114
Q

What are the components of CNVII?

A
  1. Somatic branchial motor 2. Special sensory 3. Visceral motor
115
Q

Which nerve is responsible for sensation of external acoustic meatus?

A

Somatic general sensory vagus

117
Q

Which is CNV1?

A

Opthalmic division of trigeminal nerve

119
Q

Which nerve is responsible for visceral sensation from the parotid gland?

A

Visceral sensory of Glossopharyngeal (IX)

121
Q

Which is CNV iii?

A

Mandibular division of trigeminal

122
Q

Where does CN XII exit the skull?

A

Through hypoglossal canal

123
Q

Which nerve is responsible for sensation of skin over the mandible?

A

Mandibular division of trigeminal (CNV3)

124
Q

Which nerve is responsible for upper lip sensation?

A

Maxillary division of trigeminal (CNV 2)

125
Q

Which gland is responsible for para innervation of glands of the nose and palate?

A

Facial CNVII

126
Q

What is the somatic branchial motor action of CN X?

A

Vagus - Motor to muscles of pharynx (not stylooharyngeus) - Intrinsic muscle of larynx - Muscles of the palate (not tensor veli palatini) - Striated muscle of superior 2/3 oesophagus

127
Q

Which nerve exits the skull through the internal acoustic meatus?

A

Vestibulocochlear (although facial nerve also passes through)

128
Q

What nerve is responsible for the posterior 1/3 of tongue for taste sensation?

A

The special sensory component of the Glossopharyngeal nerve (IX)

129
Q

Which nerve parasympathetically innervates the parotid gland?

A

Visceral motor compartment of the Glossopharyngeal nerve (IX)

130
Q

Which nerve is responsible for visceral sensation of oesophagus and stomach?

A

Visceral sensory vagus

132
Q

What is CNV ii?

A

Maxillary division of trigeminal nerve

133
Q

Which nerve is responsible for the motor supply of the stapedius of middle ear?

A

Facial nerve CNVII

134
Q

Which nerves exit through the superior orbital fissure?

A
  1. Oculomotor nerve (CNIII) 2. Trochlea (CNIV) 3. Opthalmic division of trig. (CNV1) 4. Abducent (CNVI)
135
Q

What is the function of CNII?

A

Optic nerve for vision from retina

136
Q

What is the main visceral sensory action of CNIX?

A

Visceral sensation to the parotid gland, carotid body and sinus, pharynx and middle ear

137
Q

Which nerve provides motor for trapezius muscle?

A

Accessory XI

138
Q

Which nerve is responsible for visceral sensation of pharynx, larynx, trachea and bronchi?

A

Visceral sensory vagus

139
Q

What nerve is responsible for cutaneous sensation of external ear?

A

The somatic sensory component of cranial nerve IX (Glossopharyngeal)

140
Q

Which is CNIII?

A

Oculomotor nerve

Anatomy (2 decks)

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