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Anatomy Quarter 2- 2023 > Lecture 20- Skull and Cranial Nerves > Flashcards

Lecture 20- Skull and Cranial Nerves Flashcards

1
Q

the neurocranium provides attachment for what muscles

A

neck, pharyngeal and chewing muscles

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2
Q

what three bones form the base of the neurocranium

A

presphenoid, basiphenoid, pterygoid

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3
Q

what are the three cranial fossae of the skull

A

rostral (caudal to cribiform plate)
middle (medial to orbital fissure)
caudal (between internal acoustic meatus and jugular foramen)

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4
Q

what does the viscerocranium contain

A

nasal cavity and dental batter

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5
Q

what is the rostrum viscerocranium composed of

A

premaxilla, maxilla, palantine, nasal, lacrimal, and portions of fronts and zygomatics

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6
Q

what is the hard palate composed of

A

premaxilla, maxilla, palantine and contains portions if the upper dental battery

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7
Q

what are nasal chonae

A

thin scroll like bones covered with respiratory and nasal epithelium

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8
Q

what is the postorbital ligament

A

forms lateral portion of the orbit

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9
Q

what muscle takes origin off the ventral edge of the zygomatic arch

A

masseter muscle

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10
Q

what does the mandible contain and where does it articulate

A

contains the lower dental battery and articulated with temporal at temporomandibular joint

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11
Q

what cranial nerve (s) exit the telecephalon

A

olfactory

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12
Q

what cranial nerve (s) exit the diencephalon

A

optic

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13
Q

what cranial nerve (s) exit the mesencephalon

A

oculomotor and trochlear

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14
Q

what cranial nerve (s) exit the metencephalon

A

trigeminal

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15
Q

what cranial nerve (s) exit the myelencephalon

A

abducent, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal

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16
Q

where does the olfactory nerve carry information to

A

piriform lobe of brain

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17
Q

what does the olfactory nerve travel through

A

cribiform plate

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18
Q

where does the optic nerve relay information from and to

A

from the retinal ganglion cells to the lateral geniculate nucleus in the thalamus

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19
Q

what does optic nerve travel through

A

optic canal

20
Q

what three nerves innervate extrinsic eye muscles

A

oculomotor, trochlear and abducens

21
Q

what muscles does the oculomotor nerve innervate

A

ventral rectus, dorsal rectus, medial rectus and ventral oblique and levator palpebrae superiosis

22
Q

what muscle does the trochlear nerve inenrvate

A

dorsal oblique

23
Q

what muscle does the abducens nerve innervate

A

lateral rectus

24
Q

what nerve provides sensory innervation to the face (pain, temperature, touch)

A

trigeminal nerve

25
Q

what are the three divisions of the trigeminal nerve

A

V1- ophthalmic
V2- maxillary
V3- mandibular

26
Q

what division of the trigeminal nerve also provides motor innervation to the muscles of mastication and tensor muscles

A

V3- mandibular

27
Q

where does V1 ophthalmic nerve exit

A

orbital fissue

28
Q

where does V2 maxillary nerve exit

A

round foramen

29
Q

where does V3 mandibular nerve exit

A

oval foramen

30
Q

what cranial nerve innervates the facial muscles, glands and taste

A

facial nerve CN VII

31
Q

what cranial nerve provides parasympathetic innervation to the ptyergopalatine ganglion

A

facial nerve- CN VII

32
Q

what are the two exits for the branches of the facial cranial nerve

A

internal acoustic meatus and stylomastoid foramen

33
Q

what is the role of the vestibular apparatus

A

balance and muscle coordination

34
Q

what is the role of the cochlea

A

hearing

35
Q

what nerve innervates the cochlea and vestibular organs

A

vestibulocochlear CN VIII

36
Q

where does the vestibulocochlear nerve enter/exit

A

internal acoustic meatus

37
Q

what cranial nerve provides motor innervation to the stylopharyngeus muscle

A

glosspharyngeal- CN IX

38
Q

what cranial nerve innervates the paraotid gland

A

glossopharyngeal nerve CN IX

39
Q

what cranial nerve innervates the taste for posterior 1/3 of the tongue, general sensation, posterior 1/3 of tongue, oropharynx, middle ear, auditory tube, carotid sinus, carotid body

A

glossopharyngeal nerve CN IX

40
Q

what cranial nerve provides motor to muscles of the soft palate

A

vagus nerve- CN X

41
Q

what cranial nerve supplies PNS to cardiac muscle, viscera to left colic flexure

A

vagus nerve CN X

42
Q

what cranial nerve innervates the taste buds around the epiglottis

A

vagus, CN X

43
Q

what cranial nerve innervates the several neck and back muscles (brachiceophalicus, omotransversarius, sternocephalicus, and trapezius

A

accessory CN XI

44
Q

where do the glossopharyngeal, vagus and accessory nerve pass through

A

jugular foramen

45
Q

which cranial nerve innervates instrinsic and extrinsic tongue muscle

A

hypoglossal CN XII

Anatomy Quarter 2- 2023 (39 decks)

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