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Questions and Answers
What is the most common facial birth defect in the UK?
Which of the following statements about cleft lip is true?
Which issues are commonly associated with a cleft palate?
What is a potential feature of a cleft palate?
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What can be the impact of modern surgery on individuals with cleft conditions?
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What structure is primarily formed by the maxilla?
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Which of the following bones does NOT articulate with the maxilla?
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How many processes are associated with the maxilla?
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What is the primary role of the alveolar process of the maxilla?
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Which articulation connects the maxilla with the mandible?
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Which surface is NOT included in the features of the maxilla?
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What kind of cleft is associated with the maxilla?
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Which bone is specifically identified as articulating with the maxilla in the provided content?
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What is the primary function of the zygomatic process of the maxilla?
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Which bones does the frontal process of the maxilla articulate with?
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What is the significance of the palatine process of the maxilla?
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Which anatomical feature is located at the anterosuperior aspect of the maxilla?
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How does the alveolar process relate to the maxillary bones?
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What characterizes the maxillary sinus?
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Which surface of the maxilla forms the lateral wall of the nasal cavity?
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What is found on the palatal (inferior) view of the maxillary bones?
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Which aspect of the maxilla helps in forming the upper face?
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What is a potential developmental abnormality of the maxilla?
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What structure is characterized as the floor of the orbit?
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Which feature serves as a buttressing contribution to the zygomatic arch?
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What structure is associated closely with the roots of maxillary molars?
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Which anatomical feature is characterized by a horizontal shelf projecting from the medial aspect of the maxilla?
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Study Notes
Maxilla
- The maxilla is a paired bone forming the upper jaw.
- It contributes to the facial skeleton, infratemporal region, orbital floor, nasal cavity wall, and roof of the mouth.
Maxilla Articulations
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External Articulations:
- Nasal bone
- Frontal bone
- Zygomatic bone
- Vomer
- Palatine bone
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Internal Articulations:
- Lacrimal bone
- Ethmoid bone
- Inferior concha
Maxillary Processes and Surfaces
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Processes:
- Alveolar process: Forms sockets for maxillary teeth.
- Zygomatic process: Contributes to the zygomatic arch.
- Frontal process: Projects upward to contact the frontal bone.
- Palatine process: Projects medially to form the roof of the mouth and floor of the nasal cavity.
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Surfaces:
- Orbital surface: Forms the floor of the orbit.
- Facial surface: Contributes to the upper face.
- Nasal surface: Forms the lateral wall of the nasal cavity.
- Infratemporal surface: Forms the wall of the infratemporal region.
Maxillary Foramina
- Infra-orbital foramen: Opening on the facial surface.
- Incisive foramen: Opening on the palatal surface.
Maxillary Sinus
- Large air space within each maxillary bone.
- Contributes to the paranasal sinuses.
- Closely related to the roots of the maxillary molars.
Cleft Lip and Palate
- Congenital malformations occurring during palate development.
- Cleft lip: Incomplete fusion of the lip.
- Cleft palate: Incomplete fusion of the palate.
- Often occur together.
- May cause difficulties with feeding, hearing, dental development, and speech.
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