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Anatomy > Lecture 29 - Nasal Cavity > Flashcards

Lecture 29 - Nasal Cavity Flashcards

0
Q

What foramen are present in the pterygopalatine fossa?

A

Maxillary - Sphenopalatine - Caudal palatine

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1
Q

What does CN I enter the nasal cavity through?

A

Cribriform plate

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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

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
Where is the vomeronasal organ located?
Rostral base of the nasal septum
25
What cradles the vomeronasal organ?
Vomeronasal cartilage from the palatine fissure
26
What is the function of the vomeronasal organ?
Specialized olfactory region - detection of pheromones
27
What is different about the horses vomeronasal organ?
Does not open into the oral cavity
28
What is the path of the vomeronasal organ?
Diverticulum of incisive duct which passes through the palatine fissure
29
What artery mostly contributes to the nasal cavity?
Sphenopalatine artery
30
What artery supplies the nasal cavity
Maxillary branches
31
What branches off the maxillary artery most rostrally?
Decending palatine artery
32
What does the descending palatine artery give rise to?
Spenopalatine artery
33
What is the path of the sphenopalatine artery?
Enters the sphenopalatine foramen to reach nasal cavity
34
What does the sphenopalatine artery supply in the nasal cavity?
Lateral nasal wall Ventral and dorsal conchae Middle region of nasal septum
35
What arteries supple the nasal cavity?
Sphenopalatine - Ethmodial - Major palatine
36
What does the external ethmodial artery supply in the nasal cavity?
Caudal nasal septum Dorsal aspect of nose Ethmoturbinates
37
What does the ethmodial a. pass through?
Ethmoidal foramina
38
What does the major palatine artery supply?
Rostral septum
39
What does the infraorbital a. supply blood to?
External surface of the nose and rostral enters nostrals
40
What does teh infraorbital artery anastomose with?
Branches of the spehnopalatine
41
What does the anastomosis of the infraorbital and sphenopalatine supply?
Ventral nasal concha
42
What cranal nerves supply sensory to the nasal cavity?
CN I - Olfactory CN V1 - Ethmodial CN V2 - Maxillary
43
What CN supplies the vomeronasal organ?
CN I
44
What innervates the glands in the nasal mucosa?
Pterygopalatine ganglion
45
What will direct postganglion PNS nerves from the pterygopalatine ganglion do?
Into the orbit will travel with ethmodial nerves to supply dorsal mucosa of turbinates
46
What are the branches of CN V2 associated with?
Pterygopalatine ganglion

Anatomy (44 decks)

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