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PNS > Maxillary and Mandibular division > Flashcards

Maxillary and Mandibular division Flashcards

1
Q

The maxillary division enters what?

A

pterygopalatine fossa

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2
Q

What does the maxillary go through to enter the pterygopalatine fossa?

A

foramen rotundum

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3
Q

Is the maxillary division sensory or motor?

A

sensory

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4
Q

The maxillary division carries sensation on what areas of the skin?

A

between the eyes and mouth over the cheeks and temples

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5
Q

The maxillary division also caries information from the what?

A

from the mucosa lining the maxillary sinuses, nasal conchae, palate, and gingiva

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6
Q

What are the four branches of the maxillary division?

A
  1. middle meningeal nerve
  2. Zygomatic nerve
  3. Two of three ganglionic branches
  4. Infraorbital nerve
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7
Q

The middle meningeal nerve is given off before what?

A

The division exits the round foramen.

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8
Q

What does the middle meningeal nerve branch of the maxillary division supply?

A

the meninges of the middle cranial fossa

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9
Q

The zygomatic nerve enters the orbit through what opening?

A

inferior orbital fissure

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10
Q

The zygomatic nerve gives off a communicating branch carrying what type of fibers?

A

postganglionic parasympathetic fibers

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11
Q

The communicating branch off of the zygomatic nerve carries postganglionic parasympathetic fibers to from the __________ ______________ to the ________________ ___________.

A

from the pterygopalatine ganglion to the lacrimal gland

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12
Q

The zygomatic nerve also gives rise to what other nerves?

A

the zygomaticotemportal nerve and the zygomaticofacial nerve

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13
Q

What does the zygomaticotemporal nerve supply?

A

skin over the temple

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14
Q

What does the zygomaticofacial nerve supply?

A

the skin over the cheek

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15
Q

The two or three ganglionic branches off of the zygomatic nerve carry what type of information?

A

sensory

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16
Q

The two or three ganglionic branches off of the zygomatic nerve carry sensory information from what structures?

A
  1. upper pharynx
  2. nasal cavity
  3. palate
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17
Q

What structure do the ganglionic branches go through to convey information?

A

through the ptperygopalatine ganglion

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18
Q

Where does the information of the ganglionic branches carry information to?

A

the maxillary division

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19
Q

The infraorbital nerve travels through what openings?

A

the infraorbital fissure and infraorbital canal

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20
Q

what does the infraorbital nerve supply?

A

the lower eyelid, skin over the upper jaw and the maxillary sinus.

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21
Q

Before the infaorbital canal the infraorbital nerve gives off what nerves?

A
  1. posterior nerve
  2. middle nerve
  3. anterior superior aveolar nerve
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22
Q

What do the posterior, middle and anterior superior aveolar nerve carry sensory info from?

A

the teeth

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23
Q

What is found just above the aveoli?

A

the superior dental plexus

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24
Q

The branches of the maxillary division of the trigeminal nerve (sensory) are used to distribute what kind of fibers? and from what structure?

A

postganglionic parasympathetic fibers from the pterygopalatine ganglion

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25
Q

Preganglionic parasympathetic fibers reach the ganglion from the facial nerve by way of the what?

A

the greater petrosal nerve

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26
Q

Postganglionic sympathetic fibers from the superior cervical ganglion pass through the what?

A

ganglion

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27
Q

What fibers also pass through the ganglion?

A

sensory

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28
Q

The mandibular division exit the cranial vault through what?

A

foramen ovale

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29
Q

what are the two roots of the maxillary division that exit the cranial vault through the foramen ovale?

A

Large sensory root and a small motor root

30
Q

These roots combine in the infratemporal fossa to form the what?

A

mandibular division

31
Q

Does the mandibular division carry motor or sensory fibers?

A

Both motor and sensory fibers

32
Q

The mandibular division carries sensation from the skin over the what?

A

mandible, posterior cheek, and posterior temple

33
Q

The mandibular division also carries sensation from mucosa of the what?

A

lower oral cavity and cheeks

34
Q

where does the mandibular division give motor innervation to?

A

8 muscles including the muscles of mastication

35
Q

What are the muscles of mastication that receive motor supply from the mandibular division?

A
  1. Masseter
  2. Temporalis
  3. Medial pterygoid
  4. Lateral pterygoid
36
Q

What are the two braches given off of the mandibular division in the infratemporal fossa?

A
  1. Recurrent Meningeal branch (nervus spinosum)

2. Medial pterygoid nerve

37
Q

The recurrent meningeal branch reenters the cranium through the what?

A

foramen spinosum

38
Q

The recurrent meningeal branch carries sensory information from the dura of what structures?

A
  1. middle cranial fossa
  2. anterior cranial fossa
  3. calvarium
39
Q

The medial pterygoid nerve is the motor supply to what muscle?

A

the medial pterygoid

40
Q

The medial pterygoid nerve also gives rise to fibers that pass through what structure?

A

the otic ganglion

41
Q

After fibers from the medial pterygoid nerve pass through the otic ganglion what do they supply?

A
  1. tensor veli palatine

2. tensor tympani

42
Q

The mandibular nerve divides predominately into what?

A

a motor anterior division and a sensory posterior division

43
Q

What does the motor anterior division give rise to?

A
  1. Masseter nerve
  2. Deep temporal nerve
  3. Lateral pterygoid nerve
  4. Buccal nerve
44
Q

The masseter nerve provides motor innervation to what muscle?

A

the masseter

45
Q

The masseter nerve carries sensory information from what?

A

the temporomandibular joint

46
Q

The deep temporal nerve gives rise to what branches?

A

an anterior and posterior branch

47
Q

What muscle do the anterior and posterior branches of the temporal nerve supply?

A

temporalis muscle

48
Q

The lateral pterygoid nerve supplies what muscle?

A

the lateral pterygoid muscle

49
Q

The buccal nerve is the what?

A

major sensory branch of the anterior division

50
Q

The buccal nerve conveys sensation from areas?

A

the cheek (both skin and mucosal surfaces) and the buccal gingivae of the molars.

51
Q

Which of the mandibular nerve is larger?

A

the posterior division

52
Q

What does the posterior division of the mandibular nerve give rise to?

A
  1. auriculotemporal nerve
  2. Lingual Nerve
  3. Inferior alveolar nerve
53
Q

The auriculotemporal nerve passes through what to get to the infratemporal fossa?

A

the parotid gland, posterior to the TMJ

54
Q

The auriculotemporal nerve carries sensory information from what areas?

A

the skin of the temple and ear

55
Q

The auriculotemporal nerve carries some postganglionic parasympathetic fibers from what structure?

A

the otic ganglion

56
Q

The lingual nerve conveys sensory information from the what?

A

Mucosa of the oral cavity

57
Q

The lingual nerve combines with a branch of what C.N?

A

C.N. VII, the chorda tympani, in the infratemporal fossa

58
Q

The inferior alveolar nerve carries sensory information from where?

A

the lower teeth and the chin

59
Q

What are the two branches of the inferior alveolar nerve?

A
  1. Incisive branch

2. Mental Nerve

60
Q

What does the Incisive branch of the inferior alveolar nerve supply?

A

the incisors, canines, 1st premolars and the adjacent gingivae

61
Q

What does the mental nerve supply?

A

the labial gingivae adjacent to the incisors and the skin of the lower lip and chin

62
Q

Motor fibers carried in the inferior alveolar nerve diverge from the nerve prior to its passing through what?

A

the mandibular foramen

63
Q

What do the motor fibers of the inferior alveolar nerve that diverge prior to its passing through the mandibular foramen supply?

A

the mylohyoid and the anterior belly of the digastric muscle

64
Q

What two autonomic ganglia communicate with the mandibular division?

A
  1. submandibular ganglia

2. otic ganglia

65
Q

The submandibular ganglia receives some preganglionic fibers from what C.N.?

A

Vll

66
Q

The submandibular ganglia receives preganglionic fibers from C.N. Vll by way of which nerve after it combines with the chorda tympani?

A

lingual nerve

67
Q

The otic ganglion sends postganglionic fibers to the what?

A

parotid gland

68
Q

The otic ganglion sends postganglionic fibers to the parotid gland by way of what nerve?

A

the auriculotemporal nerve

69
Q

In some cases the lingual nerve may convey some taste information (special sensory) to what?

A

the chorda tympani

70
Q

what is a clinical consideration of the trigeminal nerve?

A

trigeminal neuralgia

PNS (3 decks)

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