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occupy V-shaped row anterior to sulcus

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dorsum and margins of tongue: fungiform papillae

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lateral aspect of tongue: foliate papillae

contains taste buds

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median glossoepiglottic fold

runs from dorsum of tongue to epiglottis

each side of fold: valleculae

Nasal Cavities

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floor of cavity: bony palate

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anterior two thirds: palatine processes of maxilla

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posterior one third: horizontal plates of palatine bones

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posterior to incisor teeth: incisive foramina

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medial to 3rd  molar tooth: greater palatine foramen

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leads to greater palatine canal

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lateral wall of nasal cavity: vertical part perpendicular plate of palatine bone

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has notch on superior border: contact w/ sphenoid boneforms sphenopalatine (pterygopalatine) foramen

passageway for vessels and nerves from pterygopalatine fossa to nasal cavity

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sphenoid bonesphenoidal sinus

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left and right: different sizes, separated by bony septum

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pterygoid canal: posteroanteriorly thru body of sphenoid

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causes ridge on floor of sphenoid sinus

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connects foramen lacerum and sphenopalatine foramen

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traversed by greater petrosal nerve (parasympathetic fibers) traverses canal to reach pterygopalatine ganglion

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middle and superior conchae: contain small air cells

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superior to inferior concha: opening to large maxillary sinus

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nasolacrimal canal: shelter of and lateral to inferior conchaempties into inferior meatus

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bony roof of nasal cavity: nasal bone, frontal bone, cribriform pate of ethmoid bone and body of sphenoid

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vomer: articulates with sphenoid and bony palate

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nasal septum

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vessels and nerves run along nasal septum in mucoperiosteal membrane

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nerves:

nasopalatine nerve: branches of V2 via pterygoplatine gangliontowards incisive canal

anterior ethmoid nerve: superior to nasoplatine nerve

olfactory area: close to cribriform plate; contains olfactory nerve fibers

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lateral wall

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inferior concha

inferior meatus: space lateral to inferior to concha

free edge: horizontal

posterior to concha: pharyngeal orifice of auditory tube

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middle concha

middle meatus: space lateral to and inferior to concha

free edge: turns superiorly

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superior concha

small

extends from roof to front of sphenoid

superior meatus: lateral and inferior to concha

sphenoethmoidal recess: space posterosuperior to superior concha

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nasal crest/agger: elevation in front of middle concha covering base of ethmoidal crest

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atrium: superior to vestibule and anterior to middle meatus

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vestibule: superior to nostril and anterior to inferior meatus

hairs in mobile part

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beneath middle concha

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