Nose And Pns-anatomy & Physio Of Pns

Question 1

Speed of nasal cilia

Answer 1

10-20 beats per sec

Question 2

Nasociliary clearance time

Answer 2

10-20 minutes

Question 3

Maxillary sinus aka

Answer 3

Antrum of highmore

Question 4

Largest sinus and its volume

Answer 4

Maxillary sinus

15 ml

Question 5

MC sinusitis is adults (which sinus)

Answer 5

Maxillary sinus

Question 6

First sinus to appear in embryological life

Answer 6

Maxillary sinus

Question 7

Last sinus to appear in humans

Answer 7

Frontal sinus

Question 8

First radiological evidence of frontal sinus seen at what age

Answer 8

6 yrs

Question 9

Most asymmetric pair of sinus

Answer 9

Frontal sinus

Question 10

Radiological evidence of sphenoid sinus (what age)

Answer 10

4 yrs

Question 11

Sphenoid sinusitis complications

Answer 11

Cavernous sinus thrombosis
Damage of-
Optic nerve
ICA

Question 12

Patterns of pneumatisation of sphenoid sinus (pituitary adenoma)

Answer 12

Conchal
Presellar
Sellar/post-stellar

Question 13

MC type of pneumatisation of sphenoid sinus (pituitary adenoma)

Answer 13

Sellar/post-sellar

Question 14

Best surgical approach of pituitary adenoma

Answer 14

Transnasal transsphenoidal approach

Question 15

No. Of anterior ethmoid cells

Constant cells

Answer 15

2-8

Question 16

No. Of posterior ethmoidalis air cell

Answer 16

1-8

Question 17

Most constant and largest ethmoidal air cell

Answer 17

Bulla ethmoidalis

Question 18

Anterior most anterior ethmoid air cell

Answer 18

Agger nasi

Question 19

Most developed sinus at birth

Answer 19

Ethmoid sinus

Question 20

MC sinusitis in CHILDREN

Answer 20

Ethmoid sinusitis

Question 21

Sequence of appearance of sinuses

Answer 21

MESF
Maxillary 
Ethmoid 
Sphenoid 
Frontal

Question 22

Which sinus attains adult size last

Answer 22

Sphenoid sinus

Question 23

Ethmoid cell in unusual location - orbital floor called

Answer 23

Haller cell

Question 24

Ethmoid cell at unusual location - close to optic nerve called

Answer 24

Onodi cell

Question 25

Ethmoid cell at unusual location - inside middle turbinate

Answer 25

Concha bullosa (MC variation)

Question 26

Anterior and posterior division of ethmoid by which structure

Answer 26

Basal lamina

Question 27

Most posterior cell of the posterior group of ethmoid cells is

Answer 27

Onodi cells

Question 28

Nasolacrimal ducts drains into ?

Answer 28

Inferior meatus

Question 29

Structures that drain into middle meatus

Answer 29

Maxillary sinus
Frontal sinus
Anterior ethmoid air cells

Question 30

Posterior ethmoidal air cells drain into

Answer 30

Superior meatus

Question 31

Sphenoid sinus drains into

Answer 31

Superior ethmoidal recess

Question 32

Where is the surgical opening of dacrocystorhinostomy

Answer 32

Middle meatus