Nasal Cavity Flashcards
3 components to the nasal septum
Anterior to posterior
And clinical correlate
Septal cartilage
Ethmoid(perpendicular plate)
Vomer
Fracture of the noise can fracture the cribiform plate and leak CSF from the nose
Lateral wall of the nasal cavity
- Superior concha (ethmoid)
- Middle concha (ethmoid)
- Inferior concha (sphenoid)
Sphenoethmoidal recess
Above the superior concha
Superior meatus
Below the superior concha
Middle meatus
Below middle concha
Inferior meatus
Below inferior concha
Structures in the middle meatus
2 of them
- Ethmoidal bulla- rounded elevation below the middle concha
- Hiatus semilunaris- c shaped slit below the bulla
Infundibulum-anterior part of the hiatus
Openings from the sphenoethmoidal recess
- Oalfactory foramena
2. Sphenoid air sinus
Superior meatus openings
Posterior ethical air cells
Middle meatus openings
- Middle ethmoidal air cells-bulla
- Anterior ethmoidal air cells-hiatus semilunaris
- Maxillary sinus-hiatus semilunaris
- Fronatal sinus-infundibulum
Inferior meatus openings
Opening of the nasolacrimal duct
What nerve provides general sensation to the nasal cavity
V1, V2
What supplies the mucous glands of the nose
VII but the ptergopalatine ganglion
Arteries of the nasal cavity
- Sphenopalatine artery (maxillary)
- Ant/post ethmoidal (ophthalmic)
- Facial
Veins of the nasal cavity
- Ethmoidal–>ophthalmic
- Other branches and the pterygoid venous plexus
- Facial vein
Epitaxis
Nosebleed
Where are the roots of maxillary teeth found
The floor of the sinus
What nerves supply the paranasal air sinus and what else do they supply
V2-anterior and posterior superior alveolar nerve and they also supply the maxillary sinus and teeth
What makes up the hard palate
The maxillary bones and the palatine bones
What two processes combine developmentally to form the philtrum
Clinical correlate
The medial nasal and the maxillary processes fuse to form the upper lip
Cleft lip
What fuses to form the primary palate
Anterior and incisive foramen formed by the union of medial nasal processes
What fuses to form the secondary palate and its location
Posterior to the incisive foramen and foramen by the fusion of the maxillary processes
Muscles of the soft palate Tensor palati O I A N
O-auditory tube
I-palatine aponeurosis (tendon under hamulus of medial pterygoid plate)
A-tenses the soft palate
N-V3
Muscles of the soft palate Lavator palati O I A N
O-temporal bone/auditory tube
I-palatine aponeurosis
A-elevates soft palate
N-X
