1) NASAL CAVITY - Skull connections

Question 1

Identify this structure.

(1) From where (to where)?
(2) Which nasal meatus does it belong to?

Answer 1

Cribriform plate and foramina

• Anterior cranial fossa
• Common nasal meatus

Question 2

Contents of Cribriform plate and foramina

Answer 2

Olfactory nerves (I. n.) 
Anterior ethmoidal a. and n.

Question 3

Identify this structure
- From where (to where)?

Answer 3

face

Question 4

Identify this structure.

(1) From where (to where)?
(2) Which nasal meatus does it belong to?

Answer 4

Incisive canal

(1) Oral cavity
(2) Common nasal meatus

Question 5

Content of incisive canal

Answer 5

Nasopalatine a.
Nasopalatine n. (of Scarpa) (from V/2 n.)

Question 6

Identify this structure.

(1) From where (to where)?
(2) Which nasal meatus does it belong to?

Answer 6

Choana

1. Nasopharynx
2. Common nasal meatus

Question 7

Identify this structure.

(1) From where (to where)?
(2) Which nasal meatus does it belong to?

Answer 7

Aperture of sphenoid sinus (in the sphenoethmoidal recess)

1. Sphenoid sinus
2. Common nasal meatus

Question 8

Nasal passage - Superior meatus

Structures that open into the passage - ?

Answer 8

Posterior ethmoid cells

(green arrow)

Question 9

Identify this structure. (white one)

(1) From where (to where)?
(2) Which nasal meatus does it belong to?

Answer 9

Semilunar hiatus (Between ethmoid bulla and uncinate process)

(1)

A - Anteriorly: Ethmoidal infundibulum → Frontal sinus
P - Posteriorly: Aperture of maxillary sinus → Maxillary sinus (of Highmore)

(2) Middle nasal meatus

Question 10

Which type of ethmoidal cells that belong to Middle meatus?

Answer 10

• Anterior ethmoid cells
• Middle ethmoid cells

(green arrow)

Question 11

Which type of canal can you find here?

(1) From where (to where)?
(2) Which nasal meatus does it belong to?

Answer 11

Nasolacrimal canal

1. Orbit
2. Inferior nasal meatus

Question 12

Contents of nasolacrimal canal

Answer 12

Nasolacrimal duct