Unit I Nasal cavity and paranasal sinuses

Question 1

List the functions of the nasal cavity

Answer 1

airway, olfaction, warming and moistening air, and cleansing air

Question 2

What are the choanae?

Answer 2

posterior apertures of the nasal cavity that open into the nasopharynx

Question 3

What forms the roof of the nasal cavity?

Answer 3

the nasal bone, frontal bone, cribriform plate of ethmoid, and body of the sphenoid

Question 4

What forms the floor of the nasal cavity?

Answer 4

palatine process of the maxilla and horizontal plate of palatine

Question 5

What bones form the hard palate?

Answer 5

the maxilla and palatine

Question 6

What forms the medial wall (nasal septum) of the nasal cavity?

Answer 6

septal cartilage, perpendicular plate of ethmoid, and vomer

Question 7

What is a deviated septum?

Answer 7

the nasal septum doesn’t lie in the medial plane

Question 8

What could be causes of a deviated septum?

Answer 8

congenital, birth injury, and post-natal trauma

Question 9

What forms the lateral wall of the nasal cavity?

Answer 9

nasal bone, frontal process of maxilla, lacrimal bone, ethmoid, inferior nasal concha, perpindicular plate of the palatine, and medial pterygoid plate of the sphenoid

Question 10

What is the function of nasal conchae?

Answer 10

increase surface area; increase warming, moistening and cleansing

causes turbulence; good for cleansing

Question 11

List the structures of the lateral wall of the nasal cavity

Answer 11

superior, middle, and inferior nasal conchae

Question 12

Which two conchae are a part of the ethmoid?

Answer 12

the superior and middle conchae

Question 13

What anatomical variation is presentin conchae?

Answer 13

sometimes a higher conchae is above the superior concha

Question 14

Where does the sphenoethmoidal recess lie?

Answer 14

above and behind the superior nasal concha

Question 15

The sphenoethmoidal recess receives the opening of the

Answer 15

sphenoid sinus

Question 16

The superior meatus lies

Answer 16

just below the superior nasal concha

Question 17

The superior meatus recieves an opening from the

Answer 17

posterior ethmoidal cells

Question 18

The middle meatus lies

Answer 18

just below the middle concha

Question 19

The middle meatus recievs an openings from the

Answer 19

frontal and maxillary sinuses, and middle and anterior ethmoidal cells

Question 20

What is the ethmoidal bulla?

Answer 20

a small projection into the middle meatus

Question 21

The ethmoidal bulla receives an opening from

Answer 21

the middle ethmoidal cells

Question 22

Where does the hiatus semilunaris lie?

Answer 22

below the ethmoidal bulla in the middle meatus

Question 23

What structures open onto the hiatus semilunaris?

Answer 23

frontonasal duct, anterior ethmoidal cells, and maxillary sinus

Question 24

Where does the inerior meatus lie?

Answer 24

below the inferior nasal concha

Question 25

What opens onto the inferior meatus?

Answer 25

the nasolacrimal duct

Question 26

What connects the lacrimal sac to the nasal cavity?

Answer 26

the nasolacrimal duct

Question 27

What is the nasal vestibule?

Answer 27

are just inside each nostril

Question 28

What is contained within the nasal vestibule?

Answer 28

hair, sebaceous glands, and sweat glands

Question 29

What is the respiratory region?

Answer 29

the lower 2/3 of the nasal cavity

Question 30

What is anosmia?

Answer 30

the loss of olfaction

Question 31

What is the olfactory region?

Answer 31

the superior nasal concha and upper 1/3 of the nasal septum

Question 32

What is contained in the olfactory region?

Answer 32

fibers of the olfactory nerve

Question 33

What is the special sensory innervation of the nasal cavity?

Answer 33

the olfactory nerve

Question 34

What is the general sensory innervation to the nasal cavity?

Answer 34

the maxillary and opthalamic branches of the trigeminal

Question 35

What is the autonomic innervation of the nasal cavity?

Answer 35

pterygopalatine ganglion

Question 36

What supplies blood to the nasal cavity?

Answer 36

sphenopalatine branch of the maxillary artery anterior ethmoidal branch of the opthalamic artery

Question 37

What is epistaxis?

Answer 37

a noseblood

Question 38

What constitutes mild epistaxis?

Answer 38

small branches in or near the vestibule rupture

Question 39

What constitutes severe epistaxis?

Answer 39

the spurting of arterial blood

Question 40

What would cause a severe epistaxis?

Answer 40

the rupture of the sphenopalatine artery at one of its anastomoses HTN, blood disorders, and drug abuse

Question 41

Where does lymph from the nasal cavity drain to?

Answer 41

deep cervical lymph nodes

Question 42

What is the result of outgrowths from the nasal cavity?

Answer 42

paranasal sinuses

Question 43

The frontal sinus lies

Answer 43

in the frontal bone

Question 44

The frontal sinus opens into the

Answer 44

hiatus semilunaris of the middle meatus

Question 45

Via what, does the frontal sinus open into the hiatus semilunaris?

Answer 45

the frontonasal duct

Question 46

Of all the paranasal sinuses which one is most prone to infections?

Answer 46

the maxillary sinus

Question 47

What is the largest paranasal sinus?

Answer 47

the maxillary sinus

Question 48

Where does the maxillary sinus lie?

Answer 48

within the maxilla on the lateral side of the nasal cavity and inferior to the orbit

Question 49

What does the maxillary sinus open into?

Answer 49

the hiatus semilunaris of the middle meatus

Question 50

What is the only paranasal sinus that may be present at birth?

Answer 50

the maxillary sinus

Question 51

Which sinus is passed through for pituitary surgery?

Answer 51

the sphenoidal sinus

Question 52

Where does the sphenoidal sinus lie?

Answer 52

in the body of the sphenoid

Question 53

What does the sphenoid sinus open into?

Answer 53

the sphenoethmoidal recess

Question 54

What is the ethmoid sinus and where does it lie?

Answer 54

groups of ethmoidal cells that lies in the ethmoid between the orbit and nasal cavity

Question 55

What are the groups of ethmoidal cells in the ethmoid sinus?

Answer 55

posterior, middle, and anterior ethmoidal cells

Question 56

The posterior ethmoidal cells opens into

Answer 56

the superior meatus

Question 57

The middle ethmoidal cells open into

Answer 57

the ethmoidal bulla in the middle meatus

Question 58

The anterior ethmoidal cells open into

Answer 58

the hiatus semilunaris in the middle meatus

Question 59

Sinusitis is an infection of the

Answer 59

paranasal sinuses

Question 60

Acute pahryngitis is an infection of the

Answer 60

nasopharynx

Question 61

What is the most commonly infected nasal cavity?

Answer 61

the nasopharynx

Question 62

Otits media is an infection of the

Answer 62

middle ear via the pharyngotympanic tube

Question 63

Conjuctivits is an infection of the

Answer 63

lacrimal apparatus and conjuctiva via the nasolacrimal duct

Question 64

What is the common name for conjuctivitis?

Answer 64

pink eye

Question 65

Describe the route Meningitis or brain abcesses may take to infect the brain

Answer 65

cribriform plate to the anterior cranial fossa

Question 66

Mastoiditis is an infection of the

Answer 66

mastoid air cells via the aditus from the middle ear

Question 67

CSF dripping through the nose could indicate damage to the

Answer 67

cribriform plate