Lecture 29 - Nasal Cavity Flashcards Preview

Anatomy > Lecture 29 - Nasal Cavity > Flashcards

Flashcards in Lecture 29 - Nasal Cavity Deck (47):
0

What does CN I enter the nasal cavity through?

Cribriform plate

1

What foramen are present in the pterygopalatine fossa?

Maxillary - Sphenopalatine - Caudal palatine

2

What nerve/artery is involved in the pterygopalatine fossa?

Maxillary

3

What does the maxillary foramen go to?

Alveolar and infraorbital canal

4

Where does the infraorbital canal go?

Nose and rostral face

5

Where does the alveolar canal go to?

Maxillary teeth

6

Where does the sphenopalatine foramen go to?

Nasal cavity

7

Where does the caudal palatine foramen go to?

Hard palate and nasal cavity

8

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

Nasal plate

9

What is the external nose called in cattle?

Nasolabial plate

10

What is the external nose called in pigs?

Rostral plate

11

What keeps the nose moist in dogs?

Overflow from nasal mucosa

12

What keeps the nose moist in cattle and pigs?

Direct secretion from glands

13

What is the midline sulcus of the external nose called?

Phltrum

14

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

Becomes membranous

15

What ligaments support the nose?

Doral and lateral nasal ligament

16

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

Septal - Dorsolateral nasal - Ventrolateral nasal - Accessory

17

What do the nasal ligaments attach to?

Bony nasal aperture

18

What is the alar fold?

Raised fold of mucosa along medial wall of nares

19

What is the significance of the nasal diverticulum?

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

20

What is the function of the nasal conchae?

Increase the surface area for the nasal cavity

21

What ware the three portions of the concha?

Dorsal - Ventral - Ethmoidal

22

What are nasal meati?

Spaces inbetween the conchae

23

What are the four meati present in the nose?

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