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Anatomy Exam > Lecture 29 - Nasal Cavity > Flashcards

Lecture 29 - Nasal Cavity Flashcards

1
Q

What foramen are present in the pterygopalatine fossa?

A

Maxillary - Sphenopalatine - Caudal palatine

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2
Q

What nerve/artery is involved in the pterygopalatine fossa?

A

Maxillary

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3
Q

What does the maxillary foramen go to?

A

Alveolar and infraorbital canal

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4
Q

Where does the infraorbital canal go?

A

Nose and rostral face

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5
Q

Where does the alveolar canal go to?

A

Maxillary teeth

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6
Q

Where does the sphenopalatine foramen go to?

A

Nasal cavity

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7
Q

Where does the caudal palatine foramen go to?

A

Hard palate and nasal cavity

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8
Q

What is the external nose called in a carnivore or small ruminant?

A

Nasal plate

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9
Q

What is the external nose called in cattle?

A

Nasolabial plate

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10
Q

What is the external nose called in pigs?

A

Rostral plate

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11
Q

What keeps the nose moist in dogs?

A

Overflow from nasal mucosa

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12
Q

What keeps the nose moist in cattle and pigs?

A

Direct secretion from glands

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13
Q

What is the midline sulcus of the external nose called?

A

Phltrum

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14
Q

What happens to the septal cartilage at the rostral end of the nasal bones?

A

Becomes membranous

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15
Q

What ligaments support the nose?

A

Doral and lateral nasal ligament

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16
Q

What are the four cartilages that make up the rostral part of the nose?

A

Septal - Dorsolateral nasal - Ventrolateral nasal - Accessory

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17
Q

What do the nasal ligaments attach to?

A

Bony nasal aperture

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18
Q

What is the alar fold?

A

Raised fold of mucosa along medial wall of nares

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19
Q

What is the significance of the nasal diverticulum?

A

Blind pouch ventral to alar fold - can be injured via nasal tube pasage

20
Q

What is the function of the nasal conchae?

A

Increase the surface area for the nasal cavity

21
Q

What ware the three portions of the concha?

A

Dorsal - Ventral - Ethmoidal

22
Q

What are nasal meati?

A

Spaces inbetween the conchae

23
Q

What are the four meati present in the nose?

A

Dorsal - Middle - Ventral - Common

24
Q

Where is the vomeronasal organ located?

A

Rostral base of the nasal septum

25
Q

What cradles the vomeronasal organ?

A

Vomeronasal cartilage from the palatine fissure

26
Q

What is the function of the vomeronasal organ?

A

Specialized olfactory region - detection of pheromones

27
Q

What is different about the horses vomeronasal organ?

A

Does not open into the oral cavity

28
Q

What is the path of the vomeronasal organ?

A

Diverticulum of incisive duct which passes through the palatine fissure

29
Q

What artery mostly contributes to the nasal cavity?

A

Sphenopalatine artery

30
Q

What artery supplies the nasal cavity

A

Maxillary branches

31
Q

What branches off the maxillary artery most rostrally?

A

Decending palatine artery

32
Q

What does the descending palatine artery give rise to?

A

Spenopalatine artery

33
Q

What is the path of the sphenopalatine artery?

A

Enters the sphenopalatine foramen to reach nasal cavity

34
Q

What does the sphenopalatine artery supply in the nasal cavity?

A

Lateral nasal wall
Ventral and dorsal conchae
Middle region of nasal septum

35
Q

What arteries supple the nasal cavity?

A

Sphenopalatine - Ethmodial - Major palatine

36
Q

What does the external ethmodial artery supply in the nasal cavity?

A

Caudal nasal septum
Dorsal aspect of nose
Ethmoturbinates

37
Q

What does the ethmodial a. pass through?

A

Ethmoidal foramina

38
Q

What does the major palatine artery supply?

A

Rostral septum

39
Q

What does the infraorbital a. supply blood to?

A

External surface of the nose and rostral enters nostrals

40
Q

What does teh infraorbital artery anastomose with?

A

Branches of the spehnopalatine

41
Q

What does the anastomosis of the infraorbital and sphenopalatine supply?

A

Ventral nasal concha

42
Q

What cranal nerves supply sensory to the nasal cavity?

A

CN I - Olfactory
CN V1 - Ethmodial
CN V2 - Maxillary

43
Q

What CN supplies the vomeronasal organ?

A

CN I

44
Q

What innervates the glands in the nasal mucosa?

A

Pterygopalatine ganglion

45
Q

What will direct postganglion PNS nerves from the pterygopalatine ganglion do?

A

Into the orbit will travel with ethmodial nerves to supply dorsal mucosa of turbinates

46
Q

What are the branches of CN V2 associated with?

A

Pterygopalatine ganglion

47
Q

What does CN I enter the nasal cavity through?

A

Cribriform plate

Anatomy Exam (32 decks)

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