Nasal Cavity Flashcards
Nasal Cavity
from the antior nares to the posterior edge of the nasal septum and the junction of the hard and soft palate
soft palate
secondary palate
Nasal Septum
medial wall of the nasal cavity
Septal Nasal Cartilage
comes out of the spine of the maxilla
Concha (Turbinates)
ethmoid
Superior, Middle, Inferior
- underneath each concha is its corresponding meatus
Ethmoid
forms at the root of the nasal cavity
Choana
opens posteriorly from nasal cavity to nasopharynx
Vomer
Froms the inferior and posterior part of the septum
Sphenoidal Sinus
drains sphenoidal recess
Superior Meatus
openings of the posterior sphenoidal sinus and posterior ethmoidal sinus
- drains for the sphenoid and posterior ehtmoid sinuses
Middle Meatus
opening into the frontal sinus, communication with the fronal sinus via the frontonasal duct
- Ethmoid bulla: largest anterior air cell; maxillary sinus opening
- contains the semilunar hiatus
Semilunar Hiatus
- drainage of the maxillary sinus
Inferior Meatus
drains tears from the lacrimal sacs in the medial cathus of the eye intot he nasal cavity
Nasolacrimal Duct
drains tears from lacrimal sacs int he medial canthus of teh eye into the nasal cavity
1st division of trigeminal nerve (
sensation antherior ethmoid nerve
2nd division of trigeminal nerve
sensation posterior nasal cavity
Olfactory Nerve
Motor and Smell; superior to the nasal concha
Lesses and greater palatine nerves
pierce the hard palate to help provide sensation to the roof of the mouth
Blood Supply Anterior
Ophthalmatic Artery
Blood Supply Posterior
Branches of the posteior ehtmoid artery
- extenal carotid
- maxillary artery
