Microanatomy of the Nasal Cavity and Sinuses-Ward- 1/3/13
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| What two bones make up the nasal septum | Vomer and ethmoid
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| Hard palate is made of what two bones | Palatine and maxilla
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| Hairs in the nasal vestibule do what? | Trap large particles
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| What gives the nose its typical shape and resiliency? | Nasal cartilage
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| What separates the right and left nasal cavities and fuses with the hard palate? | Nasal septum
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| A deviated septum can do what? | Impede airflow and predispose to congestion
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| A blow out fracture is seen in the | Medial orbit in the ethmoid bone
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| Fracture of the ethmoid bone's cribiform plate can cause | CSF rhinorrhea
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| The nasal vestibule is covered by what type of cells? | Stratified squamous epithelium
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| Almost all of the respiratory tract is covered by | Pseudostratified ciliated columnar epithelium
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| Cells of respiratory epithelium | Ciliated cells(move mucous), Goblet cells (create mucous), Small granule cells (endocrine), brush cells (sensory), Basal cells (stem cells)
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| Nasal polyps are what? | Benign overgrowths of the nasal mucosa. May require surgery but are usually idiopathic. Can be due to prolonged respiratory irritation
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| The upper third of the lateral nasal cavity and nasal septum is lined by | Olfactory epithelium
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| Olfactory epithelium contain olfactory glands in the lamina propria release a serous fluid to dissolve and bind odorant molecules. These glands are called | Bowman's capsules
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| Olfactory epithelium contain what type of sensory cells | Bipolar sensory nerve cells with olfactory vesicles sprouting modified cilia
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| Kesselbachs area is where | All nasal blow flow interrelates
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| What connects each nasal cavity to the nasopharynx | Choanae
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| Arteries to the kesselbach area | Incisive, anterior ethmoidal, Facial
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| Arteries that feed to the back of the nasal cavity | Posterior ethmoidal, Sphenopalatine, and Maxillary
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| CSF rhinorrhea is a result from a broken | Cribiform plate
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| Sphenoid sinus drains into the | Sphenoeithmoidal recess
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| Posterior ethmoid air cells drain to the | Superior meatus
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| Anterior ethmoid air cells and middle ethmoid air cells drain to | Ethmoid bulla and then into the middle meatus
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| Frontal sinus and maxillary sinus drain to the | Semilunar hiatus and then middle meatus
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| Nasolacrimal duct drains to | Inferior meatus
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| Opening of the auditory tube drains to | Nasopharynx
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| Site of frequent sinusitis because sinus enters at a superior -oblique angle | Maxillary sinus
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| Children are more susceptible to ear infections because | The auditory tube is more horizontal than an adult
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| When mastoid air cells because infected, this can lead to | Mastoiditis
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| Maxillary sinusitis can put pressure on which nerves to cause the perception of tooth facial pain? | Infraorbital and superior alveolar nerves
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| In the oropharynx and esophagus, respiratory epithelium is replaced by | Non-keratinized stratified squamous epithelium because of high impact
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