(E4) 4 - Paranasal Sinuses Flashcards
Fisher
What is the epithelium of the paranasal sinuses?
What are the air-filled extensions of the respiratory part of the nasal cavity?
Paranasal Sinuses
What 4 bones do the paranasal sinuses extend into?
- frontal
- ethmoid
- sphenoid
- maxilla
What is this?
Frontal Sinuses
Describe the drainage process of the frontal sinuses.
Frontal Sinus Relationships: (Superior, Inferior, Anterior, Posterior and Medial)
What two arteries supply the frontal sinuses?
What is the innervation of the frontal sinuses?
What is this?
Ethmoid Air Cells
Describe the drainage process of the ethmoid air cells. (anterior, middle, and posterior)
Ethmoid Air Cell Relations: (Superior, Lateral, and Medial)
What arteries supply the ethmoid air cells?
What is the innervation of the ethmoid air cells?
Anterior Ethmoidal Artery - Origin
Ophthalmic Artery
Supraorbital Artery - Origin
Ophthalmic Artery
Supraorbital Nerve - Origin
Frontal Nerve (V1)
- Occassionally from supratrochlear nerve
Anterior and posterior ethmoidal aa. - Origin
Ophthalmic A.
Sphenopalatine Artery - Origin
Maxillary A.
- Via posterior lateral nasal
branches
- Form an anastomosis with
anterior and posterior
ethmoidal aa.
Anterior and posterior ethmoidal nerves - Origin
Nasociliary Nerve (V1)
Posterior lateral nasal nerve - Origin
Pterygopalatine Ganglion (V2)
What is this?
Sphenoid Sinuses
Drainage of sphenoid sinuses
Drain directly into the sphenoethmoidal
recess
Sphenoid Sinus Relations: (Anterior, Superior, Inferior, Lateral and Medial)
What arteries supply the sphenoid sinus?
What supplies innervation to the sphenoid sinus?
Orbital Branch (nerve) - Origin
- Pterygopalatine ganglion (V2)
- More secretomotor function
What is this?
Maxillary sinus
Drainage of Maxillary Sinuses.
Semilunar hiatus via maxillary ostium
Maxillary Sinus Relations: (Anterior, Posterior, Superior, Inferior, Lateral, Medial)
What artery supplies the maxillary sinus?
Superior Alveolar Artery - Origin
What is the innervation of the maxillary sinus?
Anterior Superior Alveolar Nerve - Origin
Infraorbital N. (V2)
Middle Superior Alveolar Nerve - Origin
Infraorbital Nerve or Anterior Superior Alveolar Nerve (V2)
Why is the cavernous sinus prone to infections?
Location of cavernous sinus infections
Lies on either side of the sella turcica
Anatomical Relationships to the Cavernous Sinus
Clinical Manifestations of spenoid tumors
Tumor treatment
Sinus Lift and Goal
Sinus Lift Procedure
Slide - Maxillary Implants
Sinusitis - Causes, Types and Clinical Manifestations
Acute Sinusitis Cause
Chronic Sinusitis Types and Treatment
Caldwell-Luc Procedure - What is it, Procedure and Conditions Treated
Locations for Sinusitis
