Nasal cavity Flashcards
the nasal cavity…
- divided by the nasal septum
- lined with respiratory mucosa
- posterior aspect continues with the nasopharyns
- communicates with the paranasal sinuses by the orficies in the lateral wall
parts of the superior wall of nasal cavity
- nasal bone
- nasal part of frontal bone
- cribriform plate of ethmoid bone
- body of sphenoid bone most post. part
parts of the inferior wall of nasal cavity
- palatine process of maxilla
- horizontal plate of palatine bone
- incisive bone
parts of the lateral wall of the nasal cavity
- maxilla
- lacrimal bone
- inferior nasal concha
- perpindicular process of the palatine bone
what is the medial wall of the nasal cavity divided into?
- a bony part
- a cartilaginous part
the bony part of the medial wall of the nasal cavity includes?
- perpindicular plate of ethmoid bone
- vomer
- nasal crest of maxilla and nasal crest of palatine bone
the cartilage part of the medial wall of the nasal cavity
-the cart. parts is between the vomer and the perpeindicular plate of the ethmoid and nasal bone with completes the nasal septum
what is the sphenoethmoidal recess
a cleft situatied between the sup. nasal concha, nasal septum and body of the sphenoid bone to when the sphenoid sinuses drain
what is located below the sphenoethmoidal recess
the sphenopalatine foramen
where is the sup. nasal meatus located?
under the sup. nasal concha into which the ethmoidal air cells open to
where is the middle nasal meatus located?
inferior portion of the ethmoid bone wich forms the uncinate process and projects in to the middle nasal meatus and cover the orifice of maxillary sinus
what forms the ethmoidal bulla and what does it bulge over
the middle ethmoidal air cells and bulges over the uncinate process
where is the inferior nasal meatus located
under the inferior nasal concha, into which the nasolacrimal duct open to
where do the 3 nasal meatus’s open into
common nasal meatus
the nasal mucosa in the lateral wall has 3 parts
- nasal vestibule
- repiratory region
- olfactory region
arterial supply of the lateral wall of the nasal cavity
- anterior and posterior ethmoidal arteries
- sphenopalatine artery
- lateral nasal brance of facial artery
- alar branch of superior labial artery
venous drainage of the the lateral wall of the nasal caity
- opthalmic vein
- pterygoid venous plexus
- facial vein
innervation of the lateral wall of the nasal cavity
- opthalmic nerive
- maxillary nerve
arterial supply of the nasal septum
- ant. post ethmoidal a.
- sphenopalatine a.
- sup. labial a.
venous drainage of the nasal septum
- opthalmic v.
- pterygoid venous plexus
- facial v. via the nasal vestibule
innervation of the nasal septum
- ophthalmic n.
- maxillary n.
- olfactory n.
lymphatic drainage of the nasal cavity
- anterior part of the nose drains in to the sub mandibular and superficial lymph node of the ant. neck
- post. part of the nose drains in to the retropharyngeal and deep cervical lymph node
