Sinus drainage

Question 1

Where does the sphenoid sinus drain to?

Answer 1

Sphenoethmoidal rececss

Question 2

Where do the ethmoid air cells drain?

Answer 2

Superior meatus and middle meatus

Question 3

Where does the maxilllary sinus drain?

Answer 3

Middle meatus

Question 4

Where does the frontal sinus drain?

Answer 4

Middle meatus

Question 5

What drains into the inferior meatus?

Answer 5

Nasolacrimal duct

Question 6

What drains into the middle meatus?

Answer 6

Ethmoid, frontal and maxillary sinuses

Question 7

What drains into the superior meatus?

Answer 7

Ethmoid

Question 8

What drains into the sphenoethmoidal recess?

Answer 8

Sphenoid sinus

Question 9

Which sinus has to drain against gravity?

Answer 9

Maxillary

The ostia (openings) are located superiorly in the medal wall, predisposing the maxillary sinus to inflammation

Question 10

Which bones forms the anterior cranial fossa?

Answer 10

Frontal, ethmoidal and sphenoid

Question 11

Which bones form the middle cranial fossa?

Answer 11

Sphenoid and temporal

Question 12

Which bones form the posterior cranial fossa?

Answer 12

Temporal and occipital

Question 13

Via which formaina does CN VII enter the cranial cavity?

Answer 13

Internal acoustic meatus

Question 14

Via which formaina does CN VII leave the cranial cavity?

Answer 14

Stylomastoid formamen

Question 15

Which skull formaina are found within the anterior cranial fossa?

Answer 15

Cribriform plate

Question 16

Which skull formaina are found within the middle cranial fossa?

Answer 16

Optic canal
Superior orbital fissure
Foramen rotundum 
Foramen ovale 
Intracranial opening of carotid canal

Question 17

Which skull formaina are found within the posterior cranial fossa?

Answer 17

Internal acoustic meatus
Jugular foramen
Hypoglossal canal