Lab 23 Nose and Paranasal Sinuses

Question 1

What is the space inferior to the superior concha?

Answer 1

superior meatus

Question 2

What is found superior to the superior concha?

Answer 2

sphenoethmoidal recess

Question 3

The nasal bone, frontal bone with sinus, cribriform plate of ethmoid, and the sphenoid body with sinus form what boundary of the nasal cavity?

Answer 3

the roof

Question 4

What nerve and artery are found embedded within the nasal mucosa? What trajectory should it have coming from below the sphenoidal sinus? Which foramen does it come from? Where does it course anteriorly? What does it access? PAY ATTENTION

Answer 4

-nasopalatine nerve, sphenopalatine artery
-horizontal trajectory
-sphenopalatine foramen
anteriorly along the septum to access the incisive canal

Question 5

The bones and cartilages of the nasal cavities are lined by ______.

Answer 5

mucosa

Question 6

What is just interior to the nostril and anterior to the inferior meatus? This is a transitional zone between skin (has hair) and respiratory mucosa (has glands).

Answer 6

vestibule

Question 7

There are 3 things found in the semilunar hiatus, what are they?

Answer 7

opening of the frontal sinus, opening of the anterior ethmoidal cells, opening of the maxillary sinus

Question 8

What is equal to vomer + perpendicular plate of ethmoid?

Answer 8

bony nasal septum

Question 9

Some people will change the name of the sphenopalatine artery to the posterior/nasal septal artery or septal artery when it reaches what?

Answer 9

the septum

Question 10

What is its own bone and is attached to the maxilla laterally?

Answer 10

inferior concha

Question 11

What are the 3 main structural components of the septum?

Answer 11

perpendicular plate of the ethmoid, the vomer, and the septal cartilage

Question 12

What is the space inferior to the middle concha?

Answer 12

middle meatus

Question 13

What is at the intermediate position of the semilunar hiatus?

Answer 13

opening of the anterior ethmoidal cells

Question 14

The nasal mucosa is highly _____ and capable of _____.

Answer 14

vascular, engorgement

Question 15

Inferior to the nasal bones, you will find the ______ which form the distal bridge, the nostril and the anterior portion of the nasal septum.

Answer 15

nasal cartilages

Question 16

The superior and middle concha are of the ____ bone.

Answer 16

ethmoid

Question 17

There are two nasal cavities separated by a _____.

Answer 17

nasal septum

Question 18

Although the opening of the maxillary sinus is found _____ along the hiatus, this opening is ______ near the _____ of the maxillary sinus. Not good for sinus drainage.

Answer 18

inferior, superior, roof

Question 19

What is at the anterosuperior end of the semilunar hiatus, projecting up into the frontal sinus?

Answer 19

opening of the frontal sinus

Question 20

The maxilla, lacrimal bone, ethmoid, inferior nasal concha, and perpendicular plate of palatine form what boundary of the nasal cavity?

Answer 20

lateral wall

Question 21

What is the most inferoposterior along the semilunar hiatus and projects laterally?

Answer 21

opening of the maxillary sinus

Question 22

What are serious nose bleeds typically from?

Answer 22

the sphenopalatine artery

Question 23

what is found in the superior meatus?

Answer 23

opening of the posterior ethmoidal cells

Question 24

What can be found in the middle meatus?

Answer 24

semilunar hiatus (a curved slit)
ethmoidal bulla (posterior to the hiatus, a smooth bulging surface)

Question 25

The anterior entrance is called the _____, the posterior opens into the ________ via the ______.

Answer 25

nostril (naris) nasopharynx choanae

Question 26

What feeds the conchae and lateral nasal wall? NOT THE SEPTUM

Answer 26

the posterior lateral nasal branches

Question 27

What is found in the sphenoethmoidal recess?

Answer 27

the opening of the sphenoidal sinus

Question 28

The opening of the nasolacrimal duct is found in what? This is deep to the middle and superior conchae.

Answer 28

inferior meatus

Question 29

The palatine process of the maxilla and the horizontal plate of palatine form what boundary of the nasal cavity?

Answer 29

floor- pay attention to this, I think it will be a question

Question 30

What is equal to vomer + perpendicular plate of ethmoid + septal cartilages + mucosa?

Answer 30

nasal septum

Question 31

The superior 1/3 of the mucosa is ________, while the lower 2/3 is ______.

Answer 31

olfactory | respiratory

Question 32

The nasal septum forms what boundary of the nasal cavity?

Answer 32

medial wall

Question 33

What is the space inferior to the inferior concha?

Answer 33

inferior meatus

Question 34

What is superior to the vestibule and anterior to the middle meatus? On the septum adjacent to the atrium is the site of vascular anastomosis called what plexus?

Answer 34

atrium | Kiesselbach's plexus

Question 35

What is found on the ethmoidal bulla?

Answer 35

opening of the middle ethmoidal cells

Question 36

What is found superior to both the choanae and the nasopharynx and inferior to the hypophyseal fossa?

Answer 36

sphenoidal sinus