Upper Airway Anatomy

Question 1

Answer 1

Question 2

Answer 2

Question 3

Know words:

septal cartilage

vomer

Answer 3

both divide nose down middle, vomer is bone

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

where is olfactory mucosa

Answer 8

just below cribiform plate

Question 9

Answer 9

Question 10

Answer 10

The maxillary sinus (lateral to nasal cavity/behind this view) drains through the orifice of the maxillary sinus through to the hiatus semilunaris (canal) of the middle meatus

Question 11

Answer 11

Question 12

Answer 12

Question 13

Answer 13

Question 14

Answer 14

Question 15

arterial supply upper 1/3 of nasal cavity

Answer 15

anterior and posterior ethmoidal arteries

Question 16

arterial supply lower 2/3 of nasal cavity

Answer 16

sphenopalatine artery

Question 17

arterial supply vestibule lateral wall

Answer 17

lateral nasal branches of facial artery

Question 18

arterial supply anterior septal wall of vestibule

Answer 18

septal branch of superior labial artery

Question 19

Answer 19

Question 20

venous drainage upper 1/3 of nasal cavity

Answer 20

–> opthamlic veins –> cavernous sinuses

Question 21

venous drainage lower 2/3 nasal cavity

Answer 21

–> pterygoid venous plexus

Question 22

venous drainage vestibule

Answer 22

–> facial vein

Question 23

innervation upper 1/3 of nasal cavity

Answer 23

branches of opthalmic branch of trigeminal nerve (CN V1)

specifically, anterior and posterior ethmoidal nerves

Question 24

innervation lower 2/3 lateral wall nasal cavity

Answer 24

branches of maxillary branch of trigeminal nerve (CN V2)

specifically the nasal branches of the maxillary nerve

which are from the pterygopalatine ganglion (PPG)

Question 25

Answer 25

Question 26

innervation septal wall lower 2/3 of nasal cavity

Answer 26

**nasopalatine nerve** branches from **CN V2**

Question 27

innervation vestibule

Answer 27

internal nasal branch of infraorbital nerve branch of CN V2

Question 28

Answer 28

Question 29

Answer 29

Question 30

Answer 30

Question 31

innervation and actions of sal-pin-go-pharyngeal fold

Answer 31

CN 10 and CN 11 from pharyngeal plexus elevate pharynx, open auditory tube

Question 32

innervation upper 1/2 of pharynx

Answer 32

somatic sensory fibers from PPG

Question 33

innervation lower 1/2 of nasopharynx

Answer 33

visceral sensory **pharyngeal branch** of glossopharyngeal nerve (**CN 11**)

Question 34

Answer 34

Question 35

Answer 35

Question 36

Answer 36

Question 37

Answer 37

Ethmoid bone

Question 38

Answer 38

Question 39

Answer 39

Palatine bone

Question 40

Answer 40

Question 41

Answer 41

Question 42

Answer 42

Question 43

Answer 43