nasal cavity
DESCRIPTION
NASAL CAVITY. Skeletal Framework. Parts: Alae. Dorsum. Bridge. Skeletal components: Nasal bones. Frontal process of maxillary. Nasal part of frontal bone. Skeletal Framework. Cartilages: Septal. Lateral. Alar. Mucous Membranes. Sensory innervation: - PowerPoint PPT PresentationTRANSCRIPT
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NASAL CAVITYNASAL CAVITY
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Skeletal FrameworkSkeletal FrameworkParts:Parts:
Alae.Alae.Dorsum.Dorsum.Bridge.Bridge.
Skeletal components:Skeletal components:Nasal bones.Nasal bones.Frontal process of maxillary.Frontal process of maxillary.Nasal part of frontal bone.Nasal part of frontal bone.
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Skeletal FrameworkSkeletal FrameworkCartilages:Cartilages:
Septal.Septal.Lateral.Lateral.Alar.Alar.
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Mucous MembranesMucous MembranesSensory innervation:Sensory innervation:
Anterior ethmoidal nerves.Anterior ethmoidal nerves.Nasopalatine nerves.Nasopalatine nerves.
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Mucous MembranesMucous MembranesMotor:Motor:
Parasympathetics:Parasympathetics:Via CN VII.Via CN VII.To:To:
Pterygopalatine ganglion.Pterygopalatine ganglion.To:To:
Mucous glands:Mucous glands:Via branches of maxillary Via branches of maxillary
nerve.nerve.
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Mucous MembranesMucous MembranesMotor:Motor:
Sympathetics:Sympathetics:To:To:
Blood vessels.Blood vessels.From:From:
Superior cervical ganglion.Superior cervical ganglion.Via:Via:
Maxillary nerve.Maxillary nerve.
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Paranasal SinusesParanasal SinusesMaxillary:Maxillary:
Largest.Largest.Present at birth.Present at birth.Opens to:Opens to:
Middle meatus.Middle meatus.Via semilunar hiatus.Via semilunar hiatus.
Nerve supply:Nerve supply:Superior alveolar nerve.Superior alveolar nerve.Infraorbital nerves.Infraorbital nerves.
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Paranasal SinusesParanasal SinusesFrontal:Frontal:
Paired.Paired.Opens to:Opens to:
Middle meatus.Middle meatus.Via frontonasal duct.Via frontonasal duct.
Nerve supply:Nerve supply:Supratrochlear nerves.Supratrochlear nerves.Supraorbital nerves.Supraorbital nerves.
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Paranasal SinusesParanasal SinusesSphenoidal:Sphenoidal:
Paired.Paired.Opens to:Opens to:
Nasal cavity.Nasal cavity.Via sphenoethmoidal recess.Via sphenoethmoidal recess.
Nerve supply:Nerve supply:Maxillary nerves.Maxillary nerves.Ethmoidal nerves.Ethmoidal nerves.
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Paranasal SinusesParanasal SinusesEthmoidal:Ethmoidal:
Group of ethmoidal air cells.Group of ethmoidal air cells.Anterior and middle cells:Anterior and middle cells:
Open into middle meatus.Open into middle meatus.
Posterior air cells:Posterior air cells:Open into superior meatus.Open into superior meatus.
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NasopharynxNasopharynxFrom base of skull to soft palate.From base of skull to soft palate.Pharyngeal tonsils:Pharyngeal tonsils:
Embedded in posterior wall.Embedded in posterior wall.Enlarged = adenoids.Enlarged = adenoids.
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NasopharynxNasopharynxSalpingopharyngeal fold (muscle):Salpingopharyngeal fold (muscle):
Created by named muscle.Created by named muscle.Muscle extends from auditory tube Muscle extends from auditory tube
cartilage cartilage to palatopharyngeus muscle.to palatopharyngeus muscle.Opening for:Opening for:
Eustachian tube.Eustachian tube.Torus tubarius.Torus tubarius.