Module Exam 5: Cranial Nerves

Question 0

Enumerate all the Cranial nerves in order

Answer 0

Olfactory, Optic, Oculomotor, Trochlear, Trigeminal, Abducens, Facial, Vestibulocochlear, Glossopharyngeal, Vagus, Spinal accesory & Hypoglossal

Question 1

Part of the peripheral nervous system. Written down in roman numerals.

Answer 1

Cranial nerves

Question 2

Cranial nerves that are extensions of teleencephalon

Answer 2

Olfactory & Optic

Question 3

Cranial nerves that exit from Midbrain

Answer 3

Oculomotor & Trochlear

Question 4

Cranial nerves that exit from pons

Answer 4

Trigeminal, Abducens, Facial & Vestibulocochlear

Question 5

Cranial nerves that exit from Medulla

Answer 5

Glossopharyngeal, Vagus, Spinal accessory & Hypoglossal

Question 6

What are the sensory nuclei of the Trigeminal nerve

Answer 6

Principal sensory, Mesencephalic & Spinal trigeminal

Question 7

What are the parts of the motor nucleus of the Trigeminal nerve

Answer 7

Motor & Sensory part

Question 8

Receives information about deep/crude touch, pain and temperature from the ipsilateral face

Answer 8

Spinal Trigeminal nucleus

Question 9

Spinal Trigeminal nucleus is located in

Answer 9

Medulla

Question 10

CNs __, __ & __ also convey pain information from their areas to the spinal trigeminal nucleus.

Answer 10

VII, IX & X

Question 11

A group of second order neurons which have cell bodies in the caudal pons. Receives information about discriminative sensation and light touch of the face as well as conscious proprioception of the jaw via _________ neurons.

Answer 11

Principal sensory nucleus. First order neurons.

Question 12

In PSN, most of the sensory information crosses the midline and travels to the __________ nucleus of the thalamus via the ___________.

Answer 12

Contralateral Ventral PosteroMedial. Ventral Trigeminothalamic Tract.

Question 13

In PSN, information from the oral cavity travels to the __________ nucleus of the thalamus via ___________.

Answer 13

Ipsilateral Ventral PosteroMedial. Dorsal Trigeminothalamic tract.

Question 14

Involved in the proprioception of the face, that is, the feeling of position in the muscle. Unlike many nuclei within the CNS, this nucleus contains no chemical synapses.

Answer 14

Mesencephalic nucleus

Question 15

The electrically coupled neurons of the mesencephalic nucleus are __________ receiving proprioceptive information from the mandible, and sending projections to the ________ to mediate monosynaptic __________.

Answer 15

Pseudounipolar cells. Motor trigeminal nucleus. Jaw jerk reflexes.

Question 16

The only structure in the CNS to contain the cell bodies of a primary afferent, which are usually contained within _______.

Answer 16

Mesencephalic nucleus. Ganglia.

Question 17

Trigeminal nerve’s sensory distribution

Answer 17

V1: Ophthalmic
V2: Maxillary
V3: Mandibular

Question 18

Contains motor neurons that innervate muscles of the first branchial arch, namely the muscles of mastication, the tensor tympani, tensor veli palatini, mylohyoid, and anterior belly of the digastric.

Answer 18

Trigeminal motor nucleus

Question 19

Trigeminal motor nucleus is located in

Answer 19

Mid pons

Question 20

CN V motor innervation: muscles of mastication & others

Answer 20

• Masseter, temporalis, medial pterygoid & lateral pterygoid

- Tensor veli palatini, mylohyoid, anterior belly of digastric & tensor tympani

Question 21

Controls the muscles of facial expression. Conveys taste sensations from anterior 2/3 of the tongue and oral cavity.

Answer 21

Facial nerve

Question 22

Supplies preganglionic parasympathetic fibers to several head and neck ganglia

Answer 22

Facial nerve

Question 23

The motor part of the facial nerve arises from

Answer 23

Facial nerve nucleus in the pons

Question 24

The sensory and sympathetic parts of the facial nerve arise from

Answer 24

Nervus intermedius

Question 25

Facial nerve forms the ________ prior to entering the facial canal

Answer 25

Geniculate ganglion

Question 26

Provides parasympathetic innervation to several glands, including the nasal, palatine, lacrimal and pharyngeal glands

Answer 26

Greater petrosal nerve

Question 27

Provides motor innervation for stapedius muscle in middle ear

Answer 27

Nerve to stapedius

Question 28

Intracranial branches of Chorda tympani

Answer 28

Submandibular gland, Sublingual gland and special sensory taste fibers from the anterior 2/3 of the tongue

Question 29

Provides parasympathetic innervation to the sphenoid, frontal, maxillary and ethmoid sinuses as well as the nasal cavity.

Answer 29

Greater petrosal nerve

Question 30

Intracranial branches of Facial nerve

Answer 30

Greater petrosal nerve, Intrapetrous facial, Nerve to stapedius & Chorda tympani

Question 31

The extracranial branches of facial nerve are distal to

Answer 31

Stylomastoid foramen

Question 32

Controls movement of some of the scalp muscles around the ear

Answer 32

Posterior auricular nerve

Question 33

Enumerate five major facial branches ( in parotid gland)

Answer 33

Cervical, Buccal, Marginal mandibular, Temporal & Zygomatic "CBM TZ"

Question 34

Nerve branches of the extracranial facial nerve

Answer 34

- Posterior auricular nerve - branch to the posterior belly of digastric as well as stylohyoid muscle - Major facial branches

Question 35

Mixed motor and sensory but mostly sensory. Aids in tasting, swallowing and salivary secretions. Its superior and inferior(petrous) ganglia contain the cell bodies of pain fibers. Projects into many different structures in the brainstem.

Answer 35

Glossopharyngeal nerve

Question 36

Nucleus fro Taste from the posterior 1/3 of the tongue and information from carotid baroreceptors and carotid body chemoreceptors

Answer 36

Solitary nucleus

Question 37

Nucleus of somatic sensory fibers from the middle ear

Answer 37

Spinal nucleus of trigeminal nerve

Question 38

Nucleus for visceral pain

Answer 38

Lateral nucleus of ala cinerea

Question 39

Nucleus of the lower motor neurons for the stylopharyngeus muscle

Answer 39

Nucleus ambiguus

Question 40

Nucleus of parasympathetic input to the parotid and mucus glands

Answer 40

Inferior salivatory nucleus

Question 41

Glossopharyngeal nerve branches

Answer 41

Branches to posterior 3rd of the tongue, Lingual branches, A communicating branch to the vagus nerve, Stylopharyngeal, Tympanic, Nerve to carotid sinus & Tonsillar " BLAST Na To"

Question 42

Contributes to visceral innervation. Also conveys sensory information about the state of the body's organs to the CNS.

Answer 42

Vagus nerve

Question 43

_____% of the nerve fibers in the vagus nerve are afferent nerves communicating the state of the viscera to the brain.

Answer 43

80-90

Question 44

The vagus nerve runs posterior to the _______ and ________ inside the carotid sheath.

Answer 44

Common carotid artery & Internal jugular vein

Question 45

Includes axons which emerge from or converge onto four nuclei of the medulla: ______, ______, ______ & ______.

Answer 45

Vagus nerve. Dorsal nucleus of vagus, Nucleus ambiguus, Solitary nucleus & Spinal trigeminal nucleus "DNSS"

Question 46

Receives afferent taste information and primary afferents from visceral organ

Answer 46

Solitary nucleus

Question 47

Sends parasympathetic output to the viscera, especially the intestines.

Answer 47

Dorsal nucleus of vagus

Question 48

Receives information about deep/crude touch, pain and temperature of the outer ear, the dura of the posterior cranial fossa and the mucosa of the larynx

Answer 48

Spinal trigeminal nucleus

Question 49

Gives rise to the branchial efferent motor fibers of the vagus nerve and preganglionic parasympathetic neurons that innervate the heart

Answer 49

Nucleus ambiguus

Question 50

Provides motor innervation from the CNS to two muscles the neck: _________ & __________.

Answer 50

Accessory nerve. SCM & Trapezius.

Question 51

Tilts and rotates head

Answer 51

Sternocleidomastoid

Question 52

Elevates shoulder and adducts the scapula

Answer 52

Trapezius

Question 53

Supplies motor fibers to all of the muscles of the tongue, except the _________.

Answer 53

Hypoglossal. Palatoglossus.

Question 54

Cranial nerves function classification

Answer 54

Sensory/afferent, motor/efferent or mixed

Question 55

Classification of afferent functions

Answer 55

Somatic: Touch, pain, temperature & proprioception Special: special senses

Question 56

Classification of efferent functions

Answer 56

Visceral: internal organs Somatic: skeletal muscles

Question 57

Special sense: smell

Answer 57

Olfactory

Question 58

Special sense: vision

Answer 58

Optic

Question 59

Constriction of pupil by what ganglion

Answer 59

Ciliary ganglion

Question 60

Motor function: eye movements other than those mediated by IV & VI. Elevation of upper eyelid.

Answer 60

Oculomotor

Question 61

Motor function: certain downward eye movements

Answer 61

Trochlear

Question 62

Motor function: muscles that open and close the mouth; ________. Preganglionic parasympathetic: skin of face, mouth, teeth, nose, sinuses, dura mater of anterior & middle fossa.

Answer 62

Trigeminal. Tensor tympani muscle of middle ear.

Question 63

Motor function: abduction of eye

Answer 63

Abducens

Question 64

Motor fx: muscles of face; _________. Preganglionic parasympathetic: lacrimal & nasal glands and sublingual and submandibular salivary glands. General sensory: part of external ear and tympanic membrane. Special senses: palate & anterior 2/3 of tongue.

Answer 64

Facial

Question 65

Special senses: equilibrium & hearing

Answer 65

Vestibuolocochlear

Question 66

Motor fx: stylopharyngeus muscle. Preganglionic parasympathetic: parotid gland. General sensory: pharynx, middle ear & posterior 1/3 of tongue. Special senses: posterior 1/3 of tongue.

Answer 66

Glossopharyngeal

Question 67

Motor fx: muscles of larynx & pharynx. Preganglionic parasympathetic: slows heart; inc gastric acid secretion and empties stomach. General sensory: larynx, trachea, esophagus, dura of posterior fossa, part of external ear and tympanic membrane. Special senses: taste; epiglottis

Answer 67

Vagus

Question 68

Motor fx: trapezius & SCM muscles

Answer 68

Accessory(spinal component)

Question 69

Motor fx: muscles that move the tongue

Answer 69

Hypoglossal

Question 70

Ganglion of the lacrimal and nasal glands

Answer 70

Pterygopalatine ganglion

Question 71

Ganglion of the sublingual & submandibular salivary glands

Answer 71

Submandibular ganglion

Question 72

Ganglion of the parotid gland

Answer 72

Otic ganglion

Question 73

Ganglion that slows down heart rate

Answer 73

Cardiac ganglia

Question 74

Contributes to visceral innervation. Also conveys sensory information about the state of the body's organs to the CNS.

Answer 74

Vagus nerve

Question 75

_____% of the nerve fibers in the vagus nerve are afferent nerves communicating the state of the viscera to the brain.

Answer 75

80-90

Question 76

The vagus nerve runs posterior to the _______ and ________ inside the carotid sheath.

Answer 76

Common carotid artery & Internal jugular vein

Question 77

Includes axons which emerge from or converge onto four nuclei of the medulla: ______, ______, ______ & ______.

Answer 77

Vagus nerve. Dorsal nucleus of vagus, Nucleus ambiguus, Solitary nucleus & Spinal trigeminal nucleus "DNSS"

Question 78

Receives afferent taste information and primary afferents from visceral organ

Answer 78

Solitary nucleus

Question 79

Sends parasympathetic output to the viscera, especially the intestines.

Answer 79

Dorsal nucleus of vagus

Question 80

Receives information about deep/crude touch, pain and temperature of the outer ear, the dura of the posterior cranial fossa and the mucosa of the larynx

Answer 80

Spinal trigeminal nucleus

Question 81

Gives rise to the branchial efferent motor fibers of the vagus nerve and preganglionic parasympathetic neurons that innervate the heart

Answer 81

Nucleus ambiguus

Question 82

Provides motor innervation from the CNS to two muscles the neck: _________ & __________.

Answer 82

Accessory nerve. SCM & Trapezius.

Question 83

Tilts and rotates head

Answer 83

Sternocleidomastoid

Question 84

Elevates shoulder and adducts the scapula

Answer 84

Trapezius

Question 85

Supplies motor fibers to all of the muscles of the tongue, except the _________.

Answer 85

Hypoglossal. Palatoglossus.

Question 86

Cranial nerves function classification

Answer 86

Sensory/afferent, motor/efferent or mixed

Question 87

Classification of afferent functions

Answer 87

Somatic: Touch, pain, temperature & proprioception Special: special senses

Question 88

Classification of efferent functions

Answer 88

Visceral: internal organs Somatic: skeletal muscles

Question 89

Special sense: smell

Answer 89

Olfactory

Question 90

Special sense: vision

Answer 90

Optic

Question 91

Constriction of pupil by what ganglion

Answer 91

Ciliary ganglion

Question 92

Motor function: eye movements other than those mediated by IV & VI. Elevation of upper eyelid.

Answer 92

Oculomotor

Question 93

Motor function: certain downward eye movements

Answer 93

Trochlear

Question 94

Motor function: muscles that open and close the mouth; ________. Preganglionic parasympathetic: skin of face, mouth, teeth, nose, sinuses, dura mater of anterior & middle fossa.

Answer 94

Trigeminal. Tensor tympani muscle of middle ear.

Question 95

Motor function: abduction of eye

Answer 95

Abducens

Question 96

Motor fx: muscles of face; _________. Preganglionic parasympathetic: lacrimal & nasal glands and sublingual and submandibular salivary glands. General sensory: part of external ear and tympanic membrane. Special senses: palate & anterior 2/3 of tongue.

Answer 96

Facial

Question 97

Special senses: equilibrium & hearing

Answer 97

Vestibuolocochlear

Question 98

Motor fx: stylopharyngeus muscle. Preganglionic parasympathetic: parotid gland. General sensory: pharynx, middle ear & posterior 1/3 of tongue. Special senses: posterior 1/3 of tongue.

Answer 98

Glossopharyngeal

Question 99

Motor fx: muscles of larynx & pharynx. Preganglionic parasympathetic: slows heart; inc gastric acid secretion and empties stomach. General sensory: larynx, trachea, esophagus, dura of posterior fossa, part of external ear and tympanic membrane. Special senses: taste; epiglottis

Answer 99

Vagus

Question 100

Motor fx: trapezius & SCM muscles

Answer 100

Accessory(spinal component)

Question 101

Motor fx: muscles that move the tongue

Answer 101

Hypoglossal

Question 102

Ganglion of the lacrimal and nasal glands

Answer 102

Pterygopalatine ganglion

Question 103

Ganglion of the sublingual & submandibular salivary glands

Answer 103

Submandibular ganglion

Question 104

Ganglion of the parotid gland

Answer 104

Otic ganglion

Question 105

Ganglion that slows down heart rate

Answer 105

Cardiac ganglia