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Neuroscience cranial nerves > Module 5 cranial nerves > Flashcards

Module 5 cranial nerves Flashcards

1
Q

also convey pain information from their areas to the spinal trigeminal nucleus

A

CNs VII, IX and X

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2
Q

Located in the medulla •Receives information about deep/crude touch, pain and temperature from the ipsilateral face

A

Spinal trigeminal nucleus

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3
Q

A group of second order neurons which have cell bodies in the caudal pons

A

Principal sensory nucleus

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4
Q

Principal sensory nucleus Receives information about discriminative sensation and light touch of the face as well as conscious propioception of the jaw via?

A

1st order neuron

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5
Q

Most of the sensory information crosses the midline and travels to the __________________ nucleus of the thalamus via the ventral ___________________ (principal nucleus)

A

Contralateral ventral posteriomedial ( VPM); ventral trigeminothalamic tract

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6
Q

Information from the oral cavity travels to the ________________ nucleus of the thalamus via the ____________ (principal nucleus)

A

Ipsilateral ventral posteriomedial; dorsal trigeminothalamic tract

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7
Q

Involved with propioception of the face, that is, the feeling of position of the muscles

A

Mesenchepalic nucleus

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8
Q

Mesenchepalic nucleus Unlike many nuclei within the CNS, this nucleus contains no ____________ but are _____________

A

Chemical synapses; electrically coupled

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9
Q

Neurons of mesencephalic nucleus are?

A

Pseudounipolar cells

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10
Q

Pseudounipolar cells, receiving propioceptive information from the ______________, and sending projections to the__________________to mediate ___________________

A

Mandible; motor trigeminal nucleus; monosynaptic jaw jerk reflexes

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11
Q

Mesencephalic nucleus, The only structure in the CNS to contain the cell bodies of a ___________, which are usually contained within _________

A

Primary afferent ;Ganglia

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12
Q

Located in the mid-pons

A

Trigeminal motor nucleus

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13
Q

Trigeminal motor nucleus innervates

A 
Muscle of masication
Tensor tympani
Tensor veli palatini 
Mylohyoid 
Anterior belly of the digastric
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14
Q

What are the muscles of masication?

A

Masseter
Temporalis
Medial pterygoid
Lateral pterygoid

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15
Q

Controls the muscles of facial expression

A

Facial nerve

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16
Q

Facial nerve Conveys taste sensations from the ____________ of the tongue and oral cavity

A

Anterior Two thirds

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17
Q

Facial nerve Supplies ____________________ fibers to several head and neck ganglia

A

Preganglionic parasympathetic

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18
Q

The motor part of the facial nerve arises from the

A

Facial nerve nucleus of the pons

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19
Q

sensory and parasympathetic parts of the facial nerve arise from the

A

Nervus intermedius

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20
Q

Faial nerve Forms the _______________ prior to entering the facial canal

A

Geniculate ganglion

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21
Q

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

A

Greater petrosal nerve

22
Q

Greater petrosal nerve also provides parasympathetic innervation to the

A 
sphenoid, 
frontal, 
maxillary and 
ethmoidsinuses as well as the
 nasal cavity
23
Q

provides motor innervation for stapediusmuscle in middle ear

A

Nerve to stapedius

24
Q

Special sensory taste fibers for the anterior 2/3 of the tongue

A

Chorda thympani

25
Q

Exit of extracranial branches of facial nerve

A

Sylomastoid foramen

26
Q

controls movements of some of the scalp muscles around the ear

A

Posterior auricular nerve

27
Q

Five major facial branches (in parotid gland

A

temporal, zygomatic, buccal, marginal mandibular, cervical

28
Q

Exit of motor nucleus of fascial nerve

A

Internal acoustic meatus

29
Q

Mixed motor and sensory but mostly sensory •Aids in tasting, swallowing and salivary secretions

A

Glossopharyngeal nerve

30
Q

Glossopharyngeal Its superior and inferior (petrous) ganglia contain the cell bodies of ________

A

Pain fibers

31
Q

Solitary nucleus receive information from?

A

Carotid baroreceptors and carotid body chemoreceptors

32
Q

somatic sensory fibers from the middle ear

A

Spinal nucleus of trigeminal nerve

33
Q

Lateral nucleus of ala cinerea

A

Visceral pain

34
Q

the lower motor neurons for the stylopharyngeus muscle

A

Nucleus ambiguus

35
Q

parasympathetic input to the parotid and mucus glands

A

Inferior salivatory nucleus

36
Q

Glossopharyngeal nerve branches

A

Tympanic •Stylopharyngeal •Tonsillar •Nerve to carotid sinus •Branches to the posterior third of the tongue •Lingual branches •A communicating branch to the Vagus Nerve

37
Q

Exit of glossopharyngeal nerve?

A

Jugular foramen

38
Q

The vagus runs posterior to the ______________ and ____________inside the carotid sheath

A

Common carotid artery; internal jugular vein

39
Q

Vagus nerve Includes axons which emerge from or converge onto

A

Four nuclei of the medlulla

40
Q

sends parasympathetic output to the viscera, especially the intestines

A

Dorsal nucleus of vagus

41
Q

gives rise to the branchialefferent motor fibers of the vagusnerve and preganglionic parasympathetic neurons that innervate the heart

A

Nucleus ambiguus

42
Q

receives afferent taste information and primary afferents from visceral organs

A

Solitary nucleus

43
Q

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

A

Spinal trigeminal nucleus

44
Q

How many percent of the nerve fibers in the vagusnerve are afferent nerves communicating the state of the viscera to the brain

A

80-90

45
Q

Accessory nerve Provides motor innervation from the CNS to two muscles of the neck: the

A

Scm and trapezius

46
Q

tilts and rotates the head

A

SCM

47
Q

elevates shoulder and adducts the scapula

A

Trapezius

48
Q

Supplies motor fibres to all of the muscles of the tongue, except the palatoglossus muscle

A

Hypoglossal nerve

49
Q

somatic (touch/pain/temperature/propioception) or special (special senses

A

Afferent

50
Q

visceral (internal organs) or somatic (skeletal muscles

A

Efferent

51
Q

special afferent

A

Cranialnerve 2

52
Q

Visceral efferent

A

Cranial nerve 10

Neuroscience cranial nerves (1 decks)

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