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MD2S3: Anatomy 203 > The Nose > Flashcards

The Nose Flashcards

(58 cards)

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1
Q

What structure separates the halves of the Nasal Cavity?

A

Nasal Septum

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2
Q

Openings of the nose

A

Anteriorly: Nostrils
Posteriorly: Into Nasopharynx through Choanae

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3
Q

Parts of External Structure of Nose

A

Bony Part
Cartilaginous Part

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4
Q

Components of Bony Part of Nose

A

Frontal Bone
Nasal Bone
Maxillary Bone

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5
Q

Components of Cartilaginous Part of Nose

A

Lateral Cartilage
Greater Alar Cartilage
Lesser Alar Cartilage

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6
Q

What is the Ethmoid Bone?

A

Unpaired Central Bone involved in formation of Orbit, Nasal Cavity, Nasal Septum and Floor of Anterior Cranial Fossa

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7
Q

Structure of Ethmoid Bone

A

Superiorly: Horizontal Cribiform Plate
Central: Median Perpendicular Plate
Medial Part of Lateral Wall: Ethmoidal Labyrinth
Lateral Part of Lateral Wall: Orbital Plate

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8
Q

What forms the Ethmoidal Labyrinth?

A

Conchae

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9
Q

Nasal Septum
Superior Parts

A

Perpendicular Plate of Ethmoid

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10
Q

Nasal Septum
Inferior and Posterior Parts

A

Vomer

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11
Q

Nasal Septum
Inferior and Anterior Parts

A

Septal Cartilage

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12
Q

What are the structures of the Lateral Wall of the Nose?

A

Vestibule of Nose
Atrium of Middle Meatus
Nasal Conchae and Meatuses

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13
Q

Lateral Wall: Vestibule
What is the Vestibule?

A

Region above nostril with skin and hairs

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14
Q

Lateral Wall: Vestibule
What limits the Vestibule?

A

Limen Nasi - Curved ridge above and behind Vestibule

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15
Q

Lateral Wall
What is the Atrium?

A

Depressed area above Vestibule and anterior to Middle Meatus

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16
Q

Lateral Wall: Nasal Conchae and Meatuses
Location

A

Behind Vestibule and Atrium

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17
Q

Lateral Wall: Nasal Conchae
What are Nasal Conchae?

A

Bony Elevations

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18
Q

Lateral Wall: Nasal Conchae
Names of Nasal Conchae

A

Superior Nasal Concha
Middle Nasal Concha
Inferior Nasal Concha

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19
Q

Lateral Wall: Nasal Meatuses
What is a Nasal Meatus?

A

Passage Inferior to each Concha

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20
Q

Lateral Wall: Nasal Meatuses
Names of Nasal Meatuses

A

Superior Meatus
Middle Meatus
Inferior Meatus

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21
Q

Lateral Wall: Nasal Meatuses
What is the Superior Meatus?

A

Short passage below Superior Concha

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22
Q

Lateral Wall: Nasal Meatuses
Superior Meatus receives the …

A

posterior ethmoidal air sinus

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23
Q

Lateral Wall: Nasal Meatuses
What is the Sphenoethmoidal Recess?

A

Space above Superior Concha
Receives opening of Sphenoidal Air Sinus

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24
Q

Lateral Wall: Nasal Meatuses
Components of the Middle Meatus

Study These Flashcards
A

Hiatus Semilunaris
Bulla Ethmoidalis

25
**Lateral Wall: Nasal Meatuses** What is the Hiatus Semilunaris?
Deep Curved Groove
26
**Lateral Wall: Nasal Meatuses** Hiatus Semilunaris has the opening of the ...
maxillary sinus
27
**Lateral Wall: Nasal Meatuses** Hiatus Semilunaris is continuous with the ____ anteriorly
curved ethmoidal infundibulum
28
**Lateral Wall: Nasal Meatuses** What openings does the Ethmoidal Infundibulum have?
Openings of Frontal Sinus and Anterior Ethmoidal Sinus
29
**Lateral Wall: Nasal Meatuses** What is the Bulla Ethmoidalis?
Bulge above Hiatus
30
**Lateral Wall: Nasal Meatuses** Bulla Ethmoidalis is produced by ...
Middle Ethmoidal Sinus
31
**Lateral Wall: Nasal Meatuses** Inferior Meatus receives ...
lower end of Nasolacrimal Duct
32
Blood Supply of External Nose
Dorsal Nasal Artery Angular Artery Superior Labial Artery ## Footnote All branches of Facial Artery
33
What are the Quadrants of Blood Supply for the Lateral Nose?
Antero-Superior Quadrant Antero-Inferior Quadrant Postero-Superior Quadrant Postero-Inferior Quadrant
34
**Lateral Nose Blood Supply** Pathway of Antero-Superior Quadrant blood supply
Internal Carotid Artery → Opthalmic Artery → **Anterior and Posterior Ethmoidal Arteries**
35
**Lateral Nose Blood Supply** Pathway of Antero-inferior Quadrant blood supply
External Carotid Artery → Maxillary Artery → **Anterior Superior Alveolar Artery**
36
**Lateral Nose Blood Supply** Pathway of Postero-Superior Quadrant Blood Supply
External Carotid Artery → Maxillary Artery → **Sphenopalatine Artery**
37
**Lateral Nose Blood Supply** Pathway of Postero-Inferior Quadrant Blood Supply
External Carotid Artery → Maxillary Artery → **Greater Palatine Artery**
38
What are the divisions of blood supply of the Nasal Septum?
Antero-Superior Half Postero-Inferior Half
39
**Nasal Septum Blood Supply** Antero-Superior Half
Septal Branch of Anterior Ethmoidal Artery Septal Branch of Superior Labial Artery
40
**Nasal Septum Blood Supply** Postero-Inferior Half
Septal Branch of Spheno-Palatine Artery Septal Branch of Greater Palatine Artery
41
What is Little's Area/Kiesselbach's Plexus?
Anastomosis of Nasal Arteries in Anterior Nasal Septum
42
Arteries of Little's Area
Anterior Ethmoidal Artery Sphenopalatine Artery Greater Palatine Artery Septal Branch of Superior Labial Artery
43
Where is epistaxis in children usually from?
Little's Area
44
Describe the Venous Drainage of the Nasal Cavity
Veins form Venous Plexus below Mucous Membrane
45
How is the Venous Plexus drained?
**Anteriorly**: Facial vein **Posteriorly**: Pterygoid Venous Plexus
46
Nerve Supply of External Nose
Infra Trochlear Nerve External Nasal Nerve Infraorbital Nerve
47
**Nerve Supply of External Nose** Pathway of Infra Trochlear Nerve
Trigeminal Nerve → Ophthalmic Nerve → Nasociliary Nerve → Infratrochlear Nerve
48
**Nerve Supply of External Nose** Pathway of External Nasal Nerve
Trigeminal Nerve → Ophthalmic Nerve → Nasociliary Nerve → External Nasal Nerve
49
**Nerve Supply of External Nose** Pathway of Infraorbital Nerve
Trigeminal Nerve → Maxillary Nerve → Infraorbital Nerve
50
**Nerve Supply of Lateral Wall** Pathway of Antero-Superior Quadrant
Trigeminal Nerve → Opthamic Nerve → Anterior Ethmoidal Nerve
51
**Nerve Supply of Lateral Wall** Pathway of Antero-Inferior Quadrant
Trigeminal Nerve → Maxillary Nerve → Anterior Superior Alveolar Nerve
52
**Nerve Supply of Lateral Wall** Postero-Superior Quadrant
Posterior Superior Lateral Nasal nerve
53
**Nerve Supply of Lateral Wall** Postero-Inferior Quadrant
Greater Palatine Nerve
54
What are the Divisions of Nerve Supply of the Nasal Septum?
Antero-Superior Half Postero-Inferior Half
55
**Nerve Supply of Nasal Septum** Antero-Superior Half pathway
Trigeminal Nerve → Opthalmic Nerve → Anterior Ethmoidal Nerve
56
**Nerve Supply of Nasal Septum** Postero-Inferior Half
Naso-Palatine Branch of Spheno-Palatine Ganglion
57
Lymphatic Drainage of Anterior Half of Nasal Cavity
Submandibular Lymph Nodes
58
Lymphatic Drainage of Posterior Half of Nasal Cavity
Retropharyngeal Lymph Nodes

MD2S3: Anatomy 203 (31 decks)

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