Author: Glossary
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Flat angle
The angle between two lines that join at an angle of almost 180°.
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Facial angle
The angle made by lines from the nasal spine and external auditory meatus meeting between the upper middle incisor teeth.
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Craniofacial angle
The angle formed by the basifacial and basicranial axes at the midpoint of the sphenoethmoidal suture.
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Costovertebral angle
The angle formed on each side of the trunk by the junction of the last rib with the lumbar vertebrae.
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Costophrenic angle
The lateral inferior corner of the pulmonary cavity bordered by the ribs and diaphragm.
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Costal angle
The meeting point of the lower border of the false ribs with the axis of the sternum.
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Cervicofemoral angle
The measured angle between the femoral neck and shaft on plain radiographs. The cervicofemoral angle is normally 35° in infancy; with maturation of the skeleton it increases to’45°. The cervicofemoral angle plus the angle of inclination should equal 180°.
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Cerebellopontine angle
The angle formed by the junction of the cerebellum and the pons.
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Cephalometric angle
The angle formed by intersecting anthropometric lines. It is used in studies of the skull and for the diagnosis of malocclusions of dental, skeletal, and dentoskeletal origin.
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Cephalic angle
In radiology, angulation of the central ray toward the patient’s head.