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MD2S3: Anatomy 203 > Paranasal Sinuses > Flashcards

Paranasal Sinuses Flashcards

1
Q

What are Paranasal Sinuses?

A

Hollowed Cavities near Nasal Cavity

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2
Q

Names of Paranasal Sinuses

A

On Either Side:
Frontal
Ethmoidal
Sphenoidal
Maxillary

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3
Q

What are the groups of the Ethmoidal Sinuses?

A

Anterior
Middle
Posterior

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4
Q

What lines the Paranasal Sinuses?

A

Respiratory Epithelium

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5
Q

What do all the Paranasal Sinuses communicate with?

A

Lateral Wall of Nasal Cavity

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6
Q

What do the Paranasal Sinuses secrete?

A

Mucous

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7
Q

How is mucous moved from the Paranasal Sinuses?

A

Moved by Cilia towards openings in Nasal Cavity

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8
Q

When do the Paranasal Sinuses grow fastest?

A

During eruption of Permanent Teeth

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9
Q

Functions of Paranasal Sinuses

A

Lighten weight of skull
Add resonance to voice

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10
Q

Frontal Sinus
Location

A

Within Frontal Bone

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11
Q

Frontal Sinus
Relations

A

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

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12
Q

Frontal Sinus
Drains into …

A

anterior end of Hiatus Semilunaris of middle meatus

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13
Q

Frontal Sinus
Blood Supply

A

Supraorbital Artery

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14
Q

Frontal Sinus
Nerve Supply

A

Supraorbital Nerve

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15
Q

Frontal Sinus
Lymphatic Drainage

A

Submandibular Lymph Nodes

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16
Q

Ethmoidal Sinuses
Location

A

Ethmoidal Labyrith

17
Q

Ethmoidal Sinuses
Relations

A

Medial: Nasal Cavity
Lateral: Orbit

18
Q

Ethmoidal Sinuses
Anterior Group drains into …

A

anterior end of Hiatus Semilunaris

19
Q

Ethmoidal Sinuses
Middle Group drains into …

A

Bulla Ethmoidalis

20
Q

Ethmoidal Sinuses
Posterior Group drains into …

A

Superior Meatus

21
Q

Ethmoidal Sinuses
Blood Supply of Anterior and Middle Sinuses

A

Anterior Ethmoidal Artery

22
Q

Ethmoidal Sinuses
Nerve Supply of Anterior and Middle Sinuses

A

Anterior Ethmoidal Nerve

23
Q

Ethmoidal Sinuses
Lymphatic Drainage of Anterior and Middle Sinuses

A

Submandibular Lymph Nodes

24
Q

Ethmoidal Sinuses
Blood Supply of Posterior Sinus

A

Posterior Ethmoidal Artery

25
Q

Ethmoidal Sinuses
Nerve Supply of Posterior Sinus

A

Posterior Ethmoidal Nerve

26
Q

Ethmoidal Sinuses
Lymphatic Drainage of Posterior Sinus

A

Retropharyngeal Lymph Nodes

27
Q

Sphenoidal Sinus
Location

A

Body of Sphenoid

Sphenoidal Sinuses are separated by septum

28
Q

Sphenoidal Sinus
Drains into …

A

Sphenoethmoidal Recess

29
Q

Sphenoidal Sinus
Blood Supply

A

Posterior Ethmoidal Artery

30
Q

Sphenoidal Sinus
Nerve Supply

A

Posterior Ethmoidal Nerve

31
Q

Sphenoidal Sinus
Lymphatic Drainage

A

Retropharyngeal Lymph Node

32
Q

Maxillary Sinus
Location

A

Pyramidal Space in Body of Maxilla

33
Q

Maxillary Sinus
Borders

A

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

34
Q

Maxillary Sinus
Drains into …

A

posterior part of Hiatus Semilunaris

35
Q

Maxillary Sinus
Blood Supply

A

Infraorbital Artery
Greater Palatine Artery

36
Q

Maxillary Sinus
Nerve Supply

A

Anterior, Middle and Posterior Superior Alveolar Nerves

37
Q

Maxillary Sinus
Lymphatic Drainage

A

Submandibular Lymph Nodes

MD2S3: Anatomy 203 (31 decks)

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