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Neuroscience > Module Exam 5: Cranial Nerves > Flashcards

Module Exam 5: Cranial Nerves Flashcards

0
Q

Enumerate all the Cranial nerves in order

A

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

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1
Q

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

A

Cranial nerves

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2
Q

Cranial nerves that are extensions of teleencephalon

A

Olfactory & Optic

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3
Q

Cranial nerves that exit from Midbrain

A

Oculomotor & Trochlear

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4
Q

Cranial nerves that exit from pons

A

Trigeminal, Abducens, Facial & Vestibulocochlear

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5
Q

Cranial nerves that exit from Medulla

A

Glossopharyngeal, Vagus, Spinal accessory & Hypoglossal

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6
Q

What are the sensory nuclei of the Trigeminal nerve

A

Principal sensory, Mesencephalic & Spinal trigeminal

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7
Q

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

A

Motor & Sensory part

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8
Q

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

A

Spinal Trigeminal nucleus

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9
Q

Spinal Trigeminal nucleus is located in

A

Medulla

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10
Q

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

A

VII, IX & X

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11
Q

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.

A

Principal sensory nucleus. First order neurons.

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12
Q

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

A

Contralateral Ventral PosteroMedial. Ventral Trigeminothalamic Tract.

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13
Q

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

A

Ipsilateral Ventral PosteroMedial. Dorsal Trigeminothalamic tract.

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14
Q

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.

A

Mesencephalic nucleus

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15
Q

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

A

Pseudounipolar cells. Motor trigeminal nucleus. Jaw jerk reflexes.

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16
Q

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

A

Mesencephalic nucleus. Ganglia.

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17
Q

Trigeminal nerve’s sensory distribution

A

V1: Ophthalmic
V2: Maxillary
V3: Mandibular

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18
Q

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.

A

Trigeminal motor nucleus

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19
Q

Trigeminal motor nucleus is located in

A

Mid pons

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20
Q

CN V motor innervation: muscles of mastication & others

A
  • Masseter, temporalis, medial pterygoid & lateral pterygoid

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

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21
Q

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

A

Facial nerve

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22
Q

Supplies preganglionic parasympathetic fibers to several head and neck ganglia

A

Facial nerve

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23
Q

The motor part of the facial nerve arises from

A

Facial nerve nucleus in the pons

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24
Q

The sensory and sympathetic parts of the facial nerve arise from

A

Nervus intermedius

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25
Q

Facial nerve forms the ________ prior to entering the facial canal

A

Geniculate ganglion

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26
Q

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

A

Greater petrosal nerve

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27
Q

Provides motor innervation for stapedius muscle in middle ear

A

Nerve to stapedius

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28
Q

Intracranial branches of Chorda tympani

A

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

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29
Q

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

A

Greater petrosal nerve

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30
Q

Intracranial branches of Facial nerve

A

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

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31
Q

The extracranial branches of facial nerve are distal to

A

Stylomastoid foramen

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32
Q

Controls movement of some of the scalp muscles around the ear

A

Posterior auricular nerve

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33
Q

Enumerate five major facial branches ( in parotid gland)

A

Cervical, Buccal, Marginal mandibular, Temporal & Zygomatic “CBM TZ”

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34
Q

Nerve branches of the extracranial facial nerve

A
  • Posterior auricular nerve
  • branch to the posterior belly of digastric as well as stylohyoid muscle
  • Major facial branches
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35
Q

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.

A

Glossopharyngeal nerve

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36
Q

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

A

Solitary nucleus

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37
Q

Nucleus of somatic sensory fibers from the middle ear

A

Spinal nucleus of trigeminal nerve

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38
Q

Nucleus for visceral pain

A

Lateral nucleus of ala cinerea

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39
Q

Nucleus of the lower motor neurons for the stylopharyngeus muscle

A

Nucleus ambiguus

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40
Q

Nucleus of parasympathetic input to the parotid and mucus glands

A

Inferior salivatory nucleus

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41
Q

Glossopharyngeal nerve branches

A

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”

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42
Q

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

A

Vagus nerve

43
Q

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

A

80-90

44
Q

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

A

Common carotid artery & Internal jugular vein

45
Q

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

A

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

46
Q

Receives afferent taste information and primary afferents from visceral organ

A

Solitary nucleus

47
Q

Sends parasympathetic output to the viscera, especially the intestines.

A

Dorsal nucleus of vagus

48
Q

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

A

Spinal trigeminal nucleus

49
Q

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

A

Nucleus ambiguus

50
Q

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

A

Accessory nerve. SCM & Trapezius.

51
Q

Tilts and rotates head

A

Sternocleidomastoid

52
Q

Elevates shoulder and adducts the scapula

A

Trapezius

53
Q

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

A

Hypoglossal. Palatoglossus.

54
Q

Cranial nerves function classification

A

Sensory/afferent, motor/efferent or mixed

55
Q

Classification of afferent functions

A

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

56
Q

Classification of efferent functions

A

Visceral: internal organs
Somatic: skeletal muscles

57
Q

Special sense: smell

A

Olfactory

58
Q

Special sense: vision

A

Optic

59
Q

Constriction of pupil by what ganglion

A

Ciliary ganglion

60
Q

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

A

Oculomotor

61
Q

Motor function: certain downward eye movements

A

Trochlear

62
Q

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

A

Trigeminal. Tensor tympani muscle of middle ear.

63
Q

Motor function: abduction of eye

A

Abducens

64
Q

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.

A

Facial

65
Q

Special senses: equilibrium & hearing

A

Vestibuolocochlear

66
Q

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.

A

Glossopharyngeal

67
Q

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

A

Vagus

68
Q

Motor fx: trapezius & SCM muscles

A

Accessory(spinal component)

69
Q

Motor fx: muscles that move the tongue

A

Hypoglossal

70
Q

Ganglion of the lacrimal and nasal glands

A

Pterygopalatine ganglion

71
Q

Ganglion of the sublingual & submandibular salivary glands

A

Submandibular ganglion

72
Q

Ganglion of the parotid gland

A

Otic ganglion

73
Q

Ganglion that slows down heart rate

A

Cardiac ganglia

74
Q

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

A

Vagus nerve

75
Q

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

A

80-90

76
Q

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

A

Common carotid artery & Internal jugular vein

77
Q

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

A

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

78
Q

Receives afferent taste information and primary afferents from visceral organ

A

Solitary nucleus

79
Q

Sends parasympathetic output to the viscera, especially the intestines.

A

Dorsal nucleus of vagus

80
Q

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

A

Spinal trigeminal nucleus

81
Q

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

A

Nucleus ambiguus

82
Q

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

A

Accessory nerve. SCM & Trapezius.

83
Q

Tilts and rotates head

A

Sternocleidomastoid

84
Q

Elevates shoulder and adducts the scapula

A

Trapezius

85
Q

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

A

Hypoglossal. Palatoglossus.

86
Q

Cranial nerves function classification

A

Sensory/afferent, motor/efferent or mixed

87
Q

Classification of afferent functions

A

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

88
Q

Classification of efferent functions

A

Visceral: internal organs
Somatic: skeletal muscles

89
Q

Special sense: smell

A

Olfactory

90
Q

Special sense: vision

A

Optic

91
Q

Constriction of pupil by what ganglion

A

Ciliary ganglion

92
Q

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

A

Oculomotor

93
Q

Motor function: certain downward eye movements

A

Trochlear

94
Q

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

A

Trigeminal. Tensor tympani muscle of middle ear.

95
Q

Motor function: abduction of eye

A

Abducens

96
Q

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.

A

Facial

97
Q

Special senses: equilibrium & hearing

A

Vestibuolocochlear

98
Q

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.

A

Glossopharyngeal

99
Q

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

A

Vagus

100
Q

Motor fx: trapezius & SCM muscles

A

Accessory(spinal component)

101
Q

Motor fx: muscles that move the tongue

A

Hypoglossal

102
Q

Ganglion of the lacrimal and nasal glands

A

Pterygopalatine ganglion

103
Q

Ganglion of the sublingual & submandibular salivary glands

A

Submandibular ganglion

104
Q

Ganglion of the parotid gland

A

Otic ganglion

105
Q

Ganglion that slows down heart rate

A

Cardiac ganglia

Neuroscience (8 decks)

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