Head and Neck - Wet Room 2

Question 1

what two bones make up the nasal septum?

Answer 1

vomer

perpendicular plate of the ethmoid bone

Question 2

what structure lies anterior to the vomer and the ethmoid bone?

(it completes the nasal septum)

Answer 2

septal cartilage

Question 3

what passes through the cribriform plate?

Answer 3

the olfactory nerve

CN1

Question 4

what kind of epithelium from the respiratory mucosa which lines most of the nasal cavity?

Answer 4

pseudo stratified ciliated columnar epithelium

Question 5

which cranial nerve is responsible for the sense of smell and innervates the mucosa of the nasal cavity?

Answer 5

CN 1 (olfactory)

Question 6

which plate of bone lying on the roof of the cranial cavity do axons of CN1 pass through to enter the cranial cavity?

Answer 6

cribriform plate of the ethmoid bone

Question 7

the space inferior to each concha in the nasal cavity is called…..

Answer 7

meatus

Question 8

what is the name given to the space above the superior concha?

Answer 8

sphenoid-ethmoid recess

Question 9

what bone are the superior and middle conchae part of?

Answer 9

ethmoid

Question 10

the nose has a rich blood supply from branches of the ………. artery (which is a branch of the ICA) and also branches of the ……….

Answer 10

ophthalmic artery

ECA

Question 11

venous drainage of the nose is via the

Answer 11

venous plexus

Question 12

2 functions of the para nasal sinuses

Answer 12

humidify air (create mucous)

reduce the weight of the skull

Question 13

what are paranasal air sinuses?

Answer 13

air - filled sacs that surround the nasa cavity

found under/above/between/behind eyes

Question 14

what opens into the spheno-ethmoid recess?

Answer 14

sphenoidal sinus

Question 15

what nerve innervates the air sinuses?

Answer 15

trigeminal

Question 16

which bone forms the roof of the nasopharynx?

Answer 16

occipital and sphenoid

Question 17

what muscle goes around the Eustachian tube and helps control the pressure?

Answer 17

salpingopharyngeus

Question 18

a collection of lymphoid tissue beneath the epithelium of the roof and posterior wall of the nasopharynx is called the

Answer 18

adenoid or nasopharyngeal tonsil

Question 19

the orifice of the ……………. lies on the side-wall of the nasopharynx level with the floor of the nose

Answer 19

Eustachian tube