Nose

Question 1

What are the boundaries of the nose?

Answer 1

superior: nasal bone and frontal process of the Maxillary bone

Question 2

What is the nasal cavity properly?

Answer 2

from the vestibule to the choana openings

Question 3

What are the boundaries of the nasal cavity?

Answer 3

• Roof
• Lateral wall
• Medial wall
• floor

Question 4

What are the component of the roof?

Answer 4

Narrowed:
- body of the sphenoid bone
- Cribiform plate of the ethmoid bone
- frontal bone
- Nasal bone

Question 5

What is the floor

Answer 5

hard palate

Question 6

What is the medial wall

Answer 6

Nasal septum:
Anterior- Cartilagenous : continuous with the septal cartilage of the external noe
Posterior- Bony : formed by the the bony perpendicular plate of ethmoid (superiorly) and the vomer (inferiorly)

Question 7

What is the specifity of the Nasal septum?

Answer 7

rich vascularization, little’s area - Kiesselbach, Anastomoses of the ICA, ECA

Question 8

What are the component of the lateral wall?

Answer 8

• Frontal process of the maxilla
• Lacrimal bone
• Labirynth of the ethmoid bone- The sup and Middle nasal conchae
• Inferior concha
• perpendicular plate of palatine bone
• Medial pterygoid plate of sphenoid

Question 9

What are the openings of the nasal cavity?

Answer 9

• Anterior: Nares (Nostrils)
• Middle: Nasal Vestibule- hairy
• Posterio: Choanae leading to the nasopharynx

Question 10

What the other name of nasal conchae

Answer 10

nasal turbinates

Question 11

the function of the conchae?

Answer 11

warming, humidify, filtrate, and increase the vitesse of the air

Question 12

What is the nasal meatus?

Answer 12

the area between the nasal conchae and the lateral nasal wall.

Question 13

What drains into the superior meatus?

Answer 13

• Posterior Ethmoid Sinus

Question 14

What drains into the Sphenoethmoidal Recess

Answer 14

Sphenoid Sinus

Question 15

What drains into the Middle Meatus?

Answer 15

Maxillary Sinus
Anterior Ethmoid Sinus
Frontal Sinus

Question 16

how the frontal sinus drains into the Middle Meatus?

Answer 16

• though the frontonasal duct - prefer to pass anteriorly

Question 17

how the anterior Ethmoid sinus opens into the Middle meatus

Answer 17

at the top of the sinus, to stop the mucus

Question 18

What drains into the Inferior Meatus?

Answer 18

Nasolacrimal duct

Question 19

What is the Osteomeatal Complex?

Answer 19

the primary drainage pathway for the frontal, maxillary, and anterior ethmoid sinuses.

Question 20

Key structures involved in the osteomeatal complex?

Answer 20

• Uncinate process: opening of the maxillary sinus
• Ethmoid Bulla: big air cell of the ethmoid
• Hiatus Semilunaris

Question 21

What are the functional walls of the nasal cavity?

Answer 21

• Latral and Floor

Question 22

What are the two parts of the Nasal mucosa?

Answer 22

• Neurosensitive epithelium: Olfactory mucosa
• Respiratory mucosa

Question 23

where the olfactory mucosa present?

Answer 23

• roof
• superior part of lateral wall
• superior part of Medial wall

Question 24

Whare the Respiratory epithelium present?

Answer 24

lower part of nasal cavity

Question 25

how is the respiratory epithelium?

Answer 25

Pseudostratified, thick, vestibule( peau), ciliated,

Question 26

Arterial supply?

Answer 26

Internal carotid artery and external carotid artery branches

Question 27

venous supply?

Answer 27

pas de valve: des autoroutes veineuses

Question 28

nerve supply?

Answer 28

specific sensation: olfactory nerve
general sensation: trigiminal nerve: ophthalmic (CN V-1), and maxillary nerves (CN V-2).
Autonomic: drainage