Pterygopalatine fossa and nasal cavity

Question 1

which bone is the crista glalli found in?

Answer 1

ethmoid bone

Question 2

which bone is the cribiform plate found?

Answer 2

ethmoid bone

Question 3

which part of the nasal cavity is considered the respiratory area?

Answer 3

the inferior 2/3s

Question 4

which part of the nasal cavity is considered the olfactory area?

Answer 4

superior 1/3

Question 5

when looking up into the nasopharynx from the oropharynx, which concha can you see?

Answer 5

the middle and the inferior concha

Question 6

what makes up the lateral wall of the nasal cavity?

Answer 6

the superior, middle, and inferior nasal conchae

Question 7

what runs through the sphenopalatine foramen?

Answer 7

the sphenopalatine artery and the nasopalatine nerve

Question 8

where are the sphenopalatine artery and nasopalatine nerve coming from?

Answer 8

the pterygopalatine fossa

Question 9

the spheno-ethmoidal recess receives drainage from what?

Answer 9

sphenoid sinus

Question 10

the superior nasal meatus receives drainage from what?

Answer 10

ethmoidal sinus

Question 11

the middle nasal meatus receives drainage from what?

Answer 11

frontal sinus, maxillary sinus, anterior/middle ethmoidal sinus

Question 12

the inferior nasal meatus receives drainage from what?

Answer 12

nasolacrimal duct

Question 13

how many openings are there for the ethmoidal sinus in the superior nasal meatus?

Answer 13

2

Question 14

where does the maxillary sinus open into the middle nasal meatus?

Answer 14

in the posterior part of the semilunar hiatus at the maxillary ostium (below the ethmoidal bulla)

Question 15

where is the ethmoidal bulla located?

Answer 15

in the middle nasal meatus

Question 16

what are the three main arteries supplying the nasal cavity?

Answer 16

opthalmic artery, the maxillary artery, and the facial artery

Question 17

what branches of the opthalmic artery are supplying the nasal cavity?

Answer 17

the anterior and posterior ethmoid arteries

Question 18

what branches of the maxillary artery are supplying the nasal cavity?

Answer 18

the sphenopalatine artery and the greater palatine artery

Question 19

what branches of the facial artery are supplying the nasal cavity?

Answer 19

superior labial artery and the lateral nasal branches

Question 20

what is kiesselbach area?

Answer 20

it is the area where all of the arteries of the nasal cavity come together in a capillary bed- can bleed profusely

Question 21

How does the maxillary sinus drain?

Answer 21

via the maxillary ostium into the middle meatus

Question 22

what is the innervation of the maxillary sinus?

Answer 22

the superior alveolar nerve branches

Question 23

where do the posterior ethmoidal cells drain into?

Answer 23

the superior meatus

Question 24

what is the innervation of the ethmoid sinus?

Answer 24

nasociliary nerve (CN V1)

Question 25

what is the innervation of the sphenoid sinus?

Answer 25

posterior ethmoidal nerve from nasociliary

Question 26

where does the frontal sinus drain into?

Answer 26

the semilunar hiatus of the middle meatus

Question 27

what is the innervation of the frontal sinus?

Answer 27

supraorbital nerves (CN V1)

Question 28

the superior (larger) end of the pterygopalatine fossa opens into what?

Answer 28

the inferior orbital fissure

Question 29

the inferior end of the pterygopalatine fossa narrows and continues as what?

Answer 29

the greater and lesser palatine canals

Question 30

what are the contents of the pterygopalatine fossa?

Answer 30

maxillary nerve (CN V2), pterygopalatine ganglion, third part of the maxillary artery

Question 31

what does the maxillary nerve run through to get into the pterygopalatine fossa?

Answer 31

the foramen rotundum

Question 32

within the pterygopalatine fossa, what does the maxillary nerve give off?

Answer 32

the zygomatic nerve

Question 33

what does the zygomatic nerve divide into?

Answer 33

zygomaticofacial and zygomaticotemporal nerves

Question 34

what does the zygomaticotemporal nerve also give rise to?

Answer 34

a communicating branch, which conveys postsympathetic parasympathetics to the lacrimal gland

Question 35

while in the pterygopalatine fossa, the maxillary nerve gives off what else besides the zygomatic nerve?

Answer 35

two ganglionic branches to the pterygopalatine ganglion

Question 36

What branches off the maxillary artery can you see in the pterygopalatine fossa?

Answer 36

descending palatine a, posterior superior alveolar a, infraorbital artery, artery of the pterygoid canal, sphenopalatine a