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Dentistry Module 3 > Anatomy: Pterygopalatine fossa > Flashcards

Anatomy: Pterygopalatine fossa Flashcards

1
Q

what anatomical structure is responsible for the nasal glands to secrete mucus and the lacrimal glands to produce tears

A

the activation of the pterygopalatine ganglion, known as the ganglion of hay fever.

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2
Q

Where is the pterygopalatine ganglion located

A

located in the pterygopalatine fossa

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3
Q

The pterygopalatine fossa communicates with the orbit via the what

A

inferior orbital fissure

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4
Q

The pterygopalatine fossa communicates with the middle cranial fossa via two foramens what are they

A

foramen rotundum and pterygoid canal

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5
Q

Where is the pterygoid canal located

A

posterior aspect of the sphenoid bone

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6
Q

Where is the pterygoid canal located in reference to the foramen rotundum?

A

posteriorly

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7
Q

Nerve fibres pass through the pterygoid canal to go where?

A

pterygopalatine fossa

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8
Q

Which nerve fibre types pass through the pterygoid canal to the pterygopalatine fossa

A

sympathetic and parasympathetic fibres

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9
Q

Autonomic nerve fibres from the pterygopalatine fossa enter the nasal cavity via the what

A

sphenopalatine foramen

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10
Q

What three structures are present in the pterygopalatine fossa:

A

Terminal 1/3rd of the maxillary artery

CN Vb (maxillary division)

sphenopalatine ganglion/pterygopalatine fossa

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11
Q

Which part of the maxillary artery does the sphenopalatine artery branch off?

A

3rd part

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12
Q

Which branch of the maxillary artery supplies the nasal cavity?

A

sphenopalatine artery

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13
Q

The descending palatine artery branches to form which two arteries?

A

greater and lesser palatine artery

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14
Q

Which arteries of the maxillary artery supply the upper dentition?

A

posterior, middle and anterior superior alveolar artery

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15
Q

Which alveolar artery does not branch of the infraorbital artery?

A

posterior superior alveolar artery

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16
Q

The maxillary artery become what after it passes through the inferior orbital fissure?

A

infraorbital artery

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17
Q

Which two alveolar arteries branch of the infraorbital artery?

A

middle and anterior superior alveolar artery.

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18
Q

Which artery supplies the soft tissues of the face?

A

infraorbital artery

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19
Q

which foramen does the infraorbital artery terminate from

A

infraorbital foramen

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20
Q

Which part of the maxillary artery supplies the nasal cavity?

A

sphenopalatine artery

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21
Q

Which artery supplies the hard palate?

A

greater palatine artery

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22
Q

Which artery supplies the soft palate?

A

lesser palatine artery

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23
Q

What is the name of the artery before it branches to form the greater and lesser palatine artery?

A

the descending palatine artery.

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24
Q

On the lateral wall of the nasal cavity, what are the names of the artery and nerves that run along side it?

A

the greater and lesser palatine nerves and arteries.

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25
Q

locate the posterior superior alveolar nerve

A
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26
Q

locate the sphenopalatine artery

A
27
Q

On the nasal septum of the nasal cavity, what are the names of the artery and nerves that run along side it?

A

sphenopalatine artery, with the nasopalatine nerve

28
Q

Which nerve supplies the anterior aspect of the nasal cavity?

A

CNV1

29
Q

Which nerve supplies the posterior aspect of the nasal cavity?

A

CNV2

30
Q

What is the named branch of the ophthalmic division of the trigeminal nerve that supplies the anterior aspect of the nasal cavity?

A

anterior ethmoidal branch of the nasociliary.

31
Q

What is the named branch of the maxillary division of the trigeminal nerve that supplies the lateral wall of the nasal cavity?

A

lateral nasal branches of the greater palatine nerve

32
Q

What is the named branch of the maxillary division of the trigeminal nerve that supplies the nasal septum (medial wall of the nasal cavity) of the nasal cavity?

A

nasopalatine nerve

33
Q

The maxillary division of the trigeminal nerve terminates on the face, which foramen does it terminate at?

A

infraorbital foramen.

34
Q

What is the name of the ganglion that sits outside of the foramen rotundum?

A

pterygopalatine ganglion

35
Q

The pterygopalatine ganglion is attached to CNV2 through the attachment of what?

A

ganglionic branches.

36
Q

Greater and lesser palatine nerve and nasopalatine nerve branch of which ganglion?

A

pterygopalatine ganglion.

37
Q

Which division of the trigeminal nerve supplies the lacrimal gland?

A

ophthalmic division

38
Q

The zygomatic nerve branches to form the zygomaticotemporal and zygomaticofacial nerve? Where do these two nerves terminate?

A

zygomaticotemporal nerve terminates via the zygomaticotemporal foramen. Zygomaticofacial nerve terminates via the zygomaticofacial foramen

39
Q

The zygomatic nerve has a communicating branch. Which nerve does it communicate with?

A

lacrimal nerve

40
Q

Which nerve supplies the posterior dentition?

A

posterior superior alveolar nerve

41
Q

Which alveolar nerve branches of the maxillary nerve?

A

posterior superior alveolar nerve

42
Q

Which nerve supplies the middle and anterior aspect of the maxillary dentition?

A

middle and anterior superior alveolar nerve.

43
Q

The middle and anterior superior alveolar nerve branch of which part of the maxillary nerve?

A

branch of the infraorbital grove.

44
Q

Which alveolar nerve supplies the mucosa of the maxillary sinus?

A

middle superior alveolar nerve

45
Q

Which alveolar nerve supplies the skin/mucosa of the upper lip and labial and buccal gingiva?

A

anterior superior alveolar nerve.

46
Q

Preganglionic sympathetic nerve fibres leave the spinal nerve via which thoracic vertebrae?

A

T1

47
Q

What synapses in the superior cervical sympathetic ganglion?

A

preganglionic sympathetic fibres

48
Q

Which ganglion would the preganglionic sympathetic fibres synapse at? (superior, middle, inferior)

A

superior cervical sympathetic ganglion.

49
Q

What do preganglionic sympathetic fibres become once they have synapsed?

A

postsympathetic fibres.

50
Q

The postganglionic sympathetic fibres travel to which nerve? which gives rise to a plexus on the ………. ………. ………..?

A

internal carotid nerve , internal carotid artery

51
Q

What sympathetic nerve fibres are present in the internal carotid plexus?

A

postsynaptic fibres.

52
Q

The internal carotid plexus forms together to produce a singular nerve, what is the name of this nerve?

A

deep petrosal nerve.

53
Q

What nerve fibre type are present on the deep petrosal nerve?

A

postsynaptic sympathetic fibres

54
Q

What foreman does the deep petrosal nerve pass through to reach the nasal cavity?

A

pterygoid canal

55
Q

What nerve fibre is present in the greater petrosal nerve?

A

pre-ganglionic parasympathetic secretomotor fibres.

56
Q

Which nerves make up the ‘nerve of the pterygoid canal’?

A

greater petrosal and deep petrosal nerve.

57
Q

Where do the pre-ganglionic parasympathetic secretomotor fibres in CN VII synapse?

A

pterygopalatine ganglion.

58
Q

Once the parasympathetic nerve fibres of CNVII synapse at the pterygopalatine ganglion, where do they distribute themselves?

A

mucosa of the nasal cavity and the lacrimal gland.

59
Q

Which nerve fibres are responsible for excess mucous and tear production?

A

parasympathetic fibres of the facial nerve.

60
Q

Which nerve fibres works to oppose the effects of the parasympathetic nerve fibres?

A

The sympathetic nerve fibres of the deep petrosal nerve.

61
Q

Does The deep petrosal nerve synapse at the pterygopalatine ganglion?

A

no

62
Q

What are the two-fibre type that enters the pterygoid canal?

A

– parasympathetic (greater petrosal) and sympathetic (deep petrosal).

63
Q

Which nerve relays the postsynaptic parasympathetic nerve fibres to the lacrimal gland, from the pterygopalatine ganglion?

A

postsynaptic parasympathetic nerve fibres are relayed via the zygomatic nerve to the lacrimal gland.

Dentistry Module 3 (33 decks)

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