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18 Cards in this Set
- Front
- Back
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What unite at the mid line to form the upper portion of the jaw?
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Maxillae
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What forms the anterior portion fo teh hard palate in the roof of the mouth, the anterior floor and walls of the nasal cavity, and also contrivute to the inferior parts of the orbits?
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Maxillae
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what do the maxillae either form or contribute to?
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They form the anterior portion of the hard palate (palatine process) in the roof of the mouth, the anterior floor and walls of the nasal cavity, and also contribute to the inferior parts of the orbits.
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What part of the maxilla provides a passage of a blood vessel and a nerve?
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Infraorbital foramen
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What project horizontally and from the greater portion of the hard palate of the maxillae?
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The 2 pallatine processes
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What are the palatine processes?
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They project horizontally and form the greater portion of the hard palate.
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What happens if the palatine processes fail to join during early prenatal development?
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A cleft palate results which may be accompanied by a hare lip.
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If a cleft palate forms or a hare lip what will newborns have troube doing?
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nursing
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What is the difference between cleft lip and cleft palate?
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split upper lip, a congenital fissure in the midline of the palate.
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What forms when there is a congenital fissure in the mid line of the palate?
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Cleft palate.
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What can reduce the incidence of cleft lip (known as harelip) and cleft palate?
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Taking folic acid 20-25%
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What does folic acid prevent?
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spina bifida, cleft palate/lip
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What is lateral to the nasal cavity?
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Maxillary sinus
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Where does the maxillary sinus drain?
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high and medial
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What is crepitus?
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A crackling sound caused by the escape of air under the skin...result of fracture of teh maxillary sinus
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What condition results when a person fractures their maxillary sinus?
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Crepitus
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what is a blowout fracture?
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Fracture the floor of the orbit causing the eye, or the muscles that move the eye, to drop down into the maxillary sinus.
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What type of fracture is it when a blow to they eye and orbit may fracture the floor of the orbit causing the eye, or the muscles that move the eye, to drop down into the maxillary sinus?
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Blowout fracture.
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