Nasal Cavity and Parnasal sinuses Nose Rhino Rhino

Nasal Cavity and Parnasal sinuses Nose = Rhino = ﺩﻣﺎﻍ = ﺑیﻨی

Rhino

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Surface Anatomy

External Nose

Nasal cavity Nostriles (nares) Choana Roof: body of the sphenoid, cribriform plate of the ethmoid, frontal bone, nasal bones, nasal cartilages Floor: maxilla, palatine Medial wall: nasal septum Lateral walls: contain sup. , middle & inf. Nasal conchae.

Nasala Cavity Walls

Nasal Cavity Mucose And Areas

Trigeminal nerve

Ophthalmic (V 1) Nerve

Maxillary (V 2) Nerve

Epistaxis: -trauma hypertension inflammation

Nasal deformity

Meningitis CSF Rhinorrhea

Paranasal Sinuses

Maxillary sinus

Maxillary (V 2) Nerve

Frontal sinus

Sphenoid sinus

Ethmoidal sinusitis

Nasal meatus • Sphenoethmoidal recess: sphenoidal sinus • Sup. Meatus: post. Ethmoidal sinuses • Middle meatus: -Bulla ethmoidalis← middle ethmoidal air sinuses Hiatus semilunaris← maxillary sinus, infundibulum Frontal sinus, ant. Ethmoidal air sinuses • Inf. Meatus ← nasolacrimal canal