Paranasal Sinuses

Question 1

What are Paranasal Sinuses?

Answer 1

Hollowed Cavities near Nasal Cavity

Question 2

Names of Paranasal Sinuses

Answer 2

On Either Side:
Frontal
Ethmoidal
Sphenoidal
Maxillary

Question 3

What are the groups of the Ethmoidal Sinuses?

Answer 3

Anterior
Middle
Posterior

Question 4

What lines the Paranasal Sinuses?

Answer 4

Respiratory Epithelium

Question 5

What do all the Paranasal Sinuses communicate with?

Answer 5

Lateral Wall of Nasal Cavity

Question 6

What do the Paranasal Sinuses secrete?

Answer 6

Mucous

Question 7

How is mucous moved from the Paranasal Sinuses?

Answer 7

Moved by Cilia towards openings in Nasal Cavity

Question 8

When do the Paranasal Sinuses grow fastest?

Answer 8

During eruption of Permanent Teeth

Question 9

Functions of Paranasal Sinuses

Answer 9

Lighten weight of skull
Add resonance to voice

Question 10

Frontal Sinus
Location

Answer 10

Within Frontal Bone

Question 11

Frontal Sinus
Relations

Answer 11

Anterior: Forehead Skin
Posterior: Anterior Cranial Fossa
Inferior: Orbit + Roof of Nasal Cavity

Question 12

Frontal Sinus
Drains into …

Answer 12

anterior end of Hiatus Semilunaris of middle meatus

Question 13

Frontal Sinus
Blood Supply

Answer 13

Supraorbital Artery

Question 14

Frontal Sinus
Nerve Supply

Answer 14

Supraorbital Nerve

Question 15

Frontal Sinus
Lymphatic Drainage

Answer 15

Submandibular Lymph Nodes

Question 16

Ethmoidal Sinuses
Location

Answer 16

Ethmoidal Labyrith

Question 17

Ethmoidal Sinuses
Relations

Answer 17

Medial: Nasal Cavity
Lateral: Orbit

Question 18

Ethmoidal Sinuses
Anterior Group drains into …

Answer 18

anterior end of Hiatus Semilunaris

Question 19

Ethmoidal Sinuses
Middle Group drains into …

Answer 19

Bulla Ethmoidalis

Question 20

Ethmoidal Sinuses
Posterior Group drains into …

Answer 20

Superior Meatus

Question 21

Ethmoidal Sinuses
Blood Supply of Anterior and Middle Sinuses

Answer 21

Anterior Ethmoidal Artery

Question 22

Ethmoidal Sinuses
Nerve Supply of Anterior and Middle Sinuses

Answer 22

Anterior Ethmoidal Nerve

Question 23

Ethmoidal Sinuses
Lymphatic Drainage of Anterior and Middle Sinuses

Answer 23

Submandibular Lymph Nodes

Question 24

Ethmoidal Sinuses
Blood Supply of Posterior Sinus

Answer 24

Posterior Ethmoidal Artery

Question 25

**Ethmoidal Sinuses** Nerve Supply of Posterior Sinus

Answer 25

Posterior Ethmoidal Nerve

Question 26

**Ethmoidal Sinuses** Lymphatic Drainage of Posterior Sinus

Answer 26

Retropharyngeal Lymph Nodes

Question 27

**Sphenoidal Sinus** Location

Answer 27

Body of Sphenoid ## Footnote Sphenoidal Sinuses are separated by septum

Question 28

**Sphenoidal Sinus** Drains into ...

Answer 28

Sphenoethmoidal Recess

Question 29

**Sphenoidal Sinus** Blood Supply

Answer 29

Posterior Ethmoidal Artery

Question 30

**Sphenoidal Sinus** Nerve Supply

Answer 30

Posterior Ethmoidal Nerve

Question 31

**Sphenoidal Sinus** Lymphatic Drainage

Answer 31

Retropharyngeal Lymph Node

Question 32

**Maxillary Sinus** Location

Answer 32

Pyramidal Space in Body of Maxilla

Question 33

**Maxillary Sinus** Borders

Answer 33

**Apex**: Zygomatic Process of Maxilla **Base**: Lateral Wall of Nose **Roof**: Orbital Floor **Floor**: Alveolar Process of Maxilla

Question 34

**Maxillary Sinus** Drains into ...

Answer 34

posterior part of Hiatus Semilunaris

Question 35

**Maxillary Sinus** Blood Supply

Answer 35

Infraorbital Artery Greater Palatine Artery

Question 36

**Maxillary Sinus** Nerve Supply

Answer 36

Anterior, Middle and Posterior Superior Alveolar Nerves

Question 37

**Maxillary Sinus** Lymphatic Drainage

Answer 37

Submandibular Lymph Nodes