Ultimate Cranial Nerves Flashcards
(140 cards)
0
Q
Which is CNIX?
A
Glossopharyngeal
1
Q
Which nerve passes through the foramen ovale?
A
CNV III Mandibular division of trigeminal
2
Q
Which is nerve II?
A
Optic nerve
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
4
Q
What are the components of CNV 3?
A
Somatic (general) sensory and somatic (branchial) motor
5
Q
Components of cranial nerve I?
A
Special sensory
6
Q
What are the main somatic motor actions of CNIX?
A
Motor to stylopharyngeus assisting in swallowing
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
8
Q
How does cranial nerve exit the skull?
A
Foramina in cribiform plate of ethmoid bone
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
9
Q
How does CN X exit the skull?
A
Vagus exits through jugular foramen
9
Q
Which nerve is responsible for striated muscle in superior 2/3 if oesophagus?
A
Vagus nerve
10
Q
What is the special sensory action of CNIX?
A
Taste from posterior 1/3 of tongue
11
Q
Which nerve is responsible for raising of superior eyelids?
A
Oculomotor nerve (Somatic motor component).
12
Q
Which is CNV?
A
Trigeminal nerve
12
Q
What is the somatic sensory function of cranial nerve IX?
A
Cutaneous sensation of external ear
13
Q
What is the action of CNVI (6)
A
Somatic motor action of the lateral rectus muscle allowing lateral gaze of the eyes
14
Q
Which nerve is responsible for muscle movement of larynx?
A
Vagus (X)
15
Q
Which nerve is responsible for sensation of the temporomandibular joint?
A
Mandibular division of trigeminal CNV3
15
Q
Which nerve is CNVI?
A
Abducent
16
Q
What is the main visceral motor action of CNIX?
A
Parasympathetic innervation of parotid gland
17
Q
Which nerve is CN X?
A
Vagus nerve
18
Q
What are the actions of cranial nerve III?
A
- 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.
18
Q
Which nerve provides motor for stylocleidomastoid muscles?
A
Accessory nerve XI
19
Where does CN XI exit the skull?
Accessory exits through jugular foramen
19
Which nerve innervates the palatoglossus muscle?
Vagus X
20
What exits through the Foramina in the cribiform plate of ethmoid?
The olfactory nerve (CNI)
21
Which nerve is responsible for the motor component of the scalp?
Facial nerve CNVII
21
What is the action of somatic general sensory components of CN X?
Sensation of auricle, external acoustic meatus and dura mater of posterior cranial fossa
22
What is the action of CN XII?
Motor to extrinsic and intrinsic muscles of tongue (not including palatoglossus)
23
How does CNV III exit the skull?
Through the foramen ovale
24
Which nerve is responsible for sensation of anterior 2/3 of the tongue?
Mandibular division of trigeminal CNV 3
25
How does CNVII exit the skull?
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)
25
Which nerve is responsible for para innervation of smooth muscle and glands of trachea, bronchi, digestive system, coronary arteries and nodes of conductive system?
Visceral motor if vagus
25
What are the components of CNXI?
Somatic motor (accessory)
27
How does CNIV exit the skull?
Through the superior orbital fissure
28
Which nerve is responsible for sensation of the cornea?
Opthalmic division of trigeminal (CNV 1)
28
What nerves exist the skull through the jugular foramen?
1. Glossopharangeal (CNIX) 2. Vagus (CNX) 3. Accessory (CNXI)
29
What is the action of CNIV?
The trochlear nerve is responsible for motor to the superior oblique assisting direction of gaze inferolaterally.
29
Which nerve is responsible for motor to superior oblique of the eye?
CNIV Trochlear
30
What are the components of CNV 2?
Somatic (general) sensory
31
Which nerve is responsible for motor action of the mylohyoid muscle?
Mandibular division of trigeminal CNV3
33
How does CNV II exit the skull?
Through the foramen rotundum
34
Which nerve is responsible for sensation of the lower lip?
Mandibular division of trigeminal CNV3
34
Which nerve is responsible for motor action of lateral rectus directing gaze laterally?
The Abducent nerve CNVI
34
What is the action of CNVIII?
- Vestibular sensation from semicircular ducts - Utricle - Saccule - Hearing from spiral organ (Cochlear) (Allows position of head movement)
34
Which nerve is responsible for visceral sensation of tongue base?
Visceral sensory vagus
35
Which nerve is responsible for constricting pupils and accommodate-lens of the eye?
Oculomotor (visceral motor parasympathetic innervation).
35
Which nerve is responsible for sensation of Mandibular teeth?
Mandibular division of trigeminal CNV3
36
Which nerve is responsible for the motor supply of stylohyoid muscle?
Facial CNVII
37
What are the motor actions of CNV 3?
Muscles of mastication, mylohyoid, anterior belly of digastric, tensor veli palatini and tensor tympani
38
Which nerve is responsible for taste from epiglottis and palate?
Special sensory vagus
39
40
What is the special sensory action of CN X?
Taste from epiglottis and palate
41
Which nerve is CN XII?
Hypoglossal nerve
42
How does CNVII exit the skull?
Through the internal acoustic meatus
44
Which nerve is responsible for sensation of the nose?
Opthalmic division of trigeminal (CNV 1)
45
What are the components of CNVIII?
Special sensory (Vestibulocochlear)
46
What are the sensory actions of CNV3?
Sensory - skin of face over the mandible, lower lip, Mandibular teeth, temporomandibular joint, musosa of mouth, anterior 2/3 of tongue
46
Which nerve is responsible for para innervation of sublingual salivary gland?
Facial CNVII
47
What exits through the optic canal?
Optic nerve (CNII)
48
Which nerve is CNXI?
Accessory
50
Which nerve passes through the foramen rotundum?
CNV II Maxillary division of trigeminal
52
Which nerve is responsible for sensation of the eyelids?
Opthalmic division of trigeminal (CNV 1)
54
Which nerve is responsible for sensation of mouth mucosa?
Mandibular division of trigeminal CNV 3
55
Which nerve is responsible for inferolateral direction of gaze?
CNIV Trochlear
56
Which is cranial nerve VII?
Facial nerve
56
Which nerve is responsible for movement of palate muscles?
Vagus (X) Not including tensor veli palatini, CNV iii Mandibular division of trigeminal
57
Which nerves enters through the internal acoustic meatus and passes through but does not innervate the parotid gland?
CNVII Facial
59
Which nerve is responsible for smell from nasal mucosa of the roof of the nasal cavities?
Olfactory nerve (CNI)
59
Which nerve is CNVIII?
Vestibulocochlear
60
Where does CNVI exit the skull?
The Abducent nerves exits the skull through the superior orbital fissure
62
Which nerve is responsible for vision from the retina?
The optic nerve (CNII)
62
Which nerve is responsible for visceral sensation of pharynx and middle ear?
Visceral sensory component of Glossopharyngeal (IX)
63
Which nerve is responsible for para innervation of the lacrimal gland?
Facial CNVII
64
Which nerve is responsible for parasympathetic innervation of the submandibular salivary gland?
Facial CNVII
66
Which nerve is responsible for motor action of the tensor tympani muscle?
Mandibular division of trigeminal CNV3
67
What is the action of the olfactory nerve?
Smell from nasal mucosa
67
Which nerves exits through the stylomastoid foramen?
CNVII Facial
67
What are the components of CNIX?
Glossopharyngeal - Somatic branchial motor - Visceral motor - Visceral sensory - Special sensory - Somatic general sensory
69
Which nerve is responsible for the motor component of muscles of facial expression?
Facial nerve CNVII
71
Which nerve is responsible for sensation of skin on the forehead?
Opthalmic division of the trigeminal nerve (CNV 1)
73
What are the divisions of CNV?
CNV i - Opthalmic CNV ii - Maxillary CNV iii - Mandibular
75
Which is cranial nerve IV?
CN 4 is the trochlear nerve
76
What are the components of CNVI?
Somatic motor
77
How does CNIX exit the skull?
Through the jugular foramen
78
Which nerve is responsible for motor action of the tensor veli palatini muscle?
Mandibular division of trigeminal (CNV 3)
79
How does CNV I exit the skull?
Opthalmic division of trigeminal exits through the superior orbital fissure
81
What are the actions of somatic branchial motor components of CNVII?
Muscles of facial expression and scalp Supplies stapedius of middle ear Stylohyoid and posterior belly of digastric muscle
83
What is cranial **nerve I**?
Olfactory
84
What is the component of CNIV?
Trochlear nerve has somatic motor components
85
How does the oculomotor nerve exit the skull?
Through the superior orbital fissure.
86
Which nerve is responsible for motor action of the anterior belly of digastric muscle?
Mandibular division of trigeminal
87
What is the action of cranial nerve XI?
Accessory provides motor to stylocleidomastoid and trapezius muscle
88
How does the optic nerve exit the skull?
Through the optic Canal
89
What are the components of CN X?
Vagus - Somatic branchial motor - Visceral motor - Visceral sensory - Special sensory - Somatic general sensory
89
What are the components of the hypoglossal nerve?
Somatic motor
91
Which nerve is responsible for motor supply to the posterior belly of digastric muscle?
Facial CNVII
92
Which muscle is responsible for taste of anterior 2/3 of tongue and palate?
Facial CNVII
93
What is the components of cranial nerve II?
Special sensory
94
Which nerve is responsible for motor supply of inferior oblique of the eye?
Oculomotor (somatic)
96
What are the actions of CNV1?
Opthalmic sensory - Sensation of the cornea, skin of forehead, scalp, eyelids, nose and mucosa of nasal cavity and paranasal sinuses
97
Which nerve is responsible for the sensation of the skin overlying the maxillary bone?
Maxillary division of trigeminal (CNV 2)
98
Which nerve is responsible for sensation of mucosa of nasal cavities and paranasal sinuses?
Opthalmic division of trigeminal nerve (CNV1)
99
Which nerve is responsible for motor movement of muscles of the pharynx?
Vagus (CN X) Apart from stylopharyngeus which is Glossopharyngeal
100
Which nerve is responsible for the motor action of the muscles of mastication?
Mandibular division of trigeminal nerve CNV3
101
Which nerve is responsible for sensation of maxillary sinuses?
Maxillary division of trigeminal nerve (CNV2)
101
What are the actions of the somatic sensory CNVII?
Taste from anterior 2/3 of tongue and palate
102
Which nerve is responsible for motor supply of the stylopharyngeus assisting in swallowing?
Somatic branchial motor component of Glossopharyngeal (IX)
104
What are the components of the third cranial nerve?
1. Somatic motor 2. Visceral motor
104
Which nerve is responsible for the sensation of the scalp?
Opthalmic division of trigeminal (CNV 1)
106
What is the visceral motor action of CN X?
Parasympathetic innervation to smooth muscle and glands of trachea, bronchi, digestive tract, coronary arteries and nodes of conduction system of the heart
107
Which nerve is responsible for sensation of maxillary teeth?
Maxillary division of trigeminal (CNV2)
108
What are the components of CNV 1?
Somatic (general) sensory
110
Which nerve is responsible for visceral sensation of the carotid body and sinus?
Visceral sensory of Glossopharyngeal (IX)
111
Which nerve is responsible for sensation of dura mater of posterior cranial fossa?
Somatic general sensory vagus
112
Which nerve is responsible for motor innervation of intrinsic and extrinsic muscles of the tongue?
Hypoglossal (CN XII) Not including palatoglossus
114
What are the components of CNVII?
1. Somatic branchial motor 2. Special sensory 3. Visceral motor
115
Which nerve is responsible for sensation of external acoustic meatus?
Somatic general sensory vagus
117
Which is CNV1?
Opthalmic division of trigeminal nerve
119
Which nerve is responsible for visceral sensation from the parotid gland?
Visceral sensory of Glossopharyngeal (IX)
121
Which is CNV iii?
Mandibular division of trigeminal
122
Where does CN XII exit the skull?
Through hypoglossal canal
123
Which nerve is responsible for sensation of skin over the mandible?
Mandibular division of trigeminal (CNV3)
124
Which nerve is responsible for upper lip sensation?
Maxillary division of trigeminal (CNV 2)
125
Which gland is responsible for para innervation of glands of the nose and palate?
Facial CNVII
126
What is the somatic branchial motor action of CN X?
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
Which nerve exits the skull through the internal acoustic meatus?
Vestibulocochlear (although facial nerve also passes through)
128
What nerve is responsible for the posterior 1/3 of tongue for taste sensation?
The special sensory component of the Glossopharyngeal nerve (IX)
129
Which nerve parasympathetically innervates the parotid gland?
Visceral motor compartment of the Glossopharyngeal nerve (IX)
130
Which nerve is responsible for visceral sensation of oesophagus and stomach?
Visceral sensory vagus
132
What is CNV ii?
Maxillary division of trigeminal nerve
133
Which nerve is responsible for the motor supply of the stapedius of middle ear?
Facial nerve CNVII
134
Which nerves exit through the superior orbital fissure?
1. Oculomotor nerve (CNIII) 2. Trochlea (CNIV) 3. Opthalmic division of trig. (CNV1) 4. Abducent (CNVI)
135
What is the function of CNII?
Optic nerve for vision from retina
136
What is the main visceral sensory action of CNIX?
Visceral sensation to the parotid gland, carotid body and sinus, pharynx and middle ear
137
Which nerve provides motor for trapezius muscle?
Accessory XI
138
Which nerve is responsible for visceral sensation of pharynx, larynx, trachea and bronchi?
Visceral sensory vagus
139
What nerve is responsible for cutaneous sensation of external ear?
The somatic sensory component of cranial nerve IX (Glossopharyngeal)
140
Which is CNIII?
Oculomotor nerve
