NASAL SINUSES

Question 1

How many frontal sinuses are there

Answer 1

2

Question 2

How does the frontal sinuses drain into the middle meatus(Semi lunar hiatus)

Answer 2

Through frontonasal duct

Question 3

Innervation of frontal sinuses

Answer 3

Supraorbital nerve

Question 4

Blood supply of frontal sinuses

Answer 4

Anterior ethmoidal artery

Question 5

Where does the maxillary sinus drain into?

Answer 5

Middle meatus(Semi lunar hiatus)

Question 6

Innervation of maxillary sinus

Answer 6

Anterior, middle and posterior alveolar nerve

Question 7

Blood supply of maxillary sinus

Answer 7

Maxillary artery

Question 8

What drains the maxillary sinus into middle meatus(Semi lunar hiatus)

Answer 8

Maxillary ostia

Question 9

Drains into spheno-ethmoidal recess

Answer 9

Sphenoidal sinus

Question 10

Innervation of sphenoidal sinus

Answer 10

Posterior ethmoidal nerve

Question 11

Blood supply of sphenoidal sinus

Answer 11

Posterior ethmoidal artery

Question 12

Divisions of ethmoidal sinus

Answer 12

Anterior, middle and posterior

Question 13

Innervation of ethmoidal sinus

Answer 13

Posterior and ant. ethmoidal nerve

Question 14

Blood supply of ethmoidal sinus

Answer 14

Posterior and ant. ethmoidal nerve

Question 15

Drains into middle meatus(Semi lunar hiatus)

Answer 15

Frontal sinus, Maxillary sinus and anterior ethmoidal sinus

Question 16

Drains into spheno-ethmoidal recess

Answer 16

Sphenoidal sinus

Question 17

Opens into lateral wall of superior meatus

Answer 17

Posterior ethmoidal sinus

Question 18

Opens into lateral wall of middle meatus

Answer 18

Middle ethmoidal sinus