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        | an extension of a bone making an angle with the rest of the structure |  | 
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        | a large, rough projection |  | 
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        | a smaller, rough projection |  | 
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 | Definition 
 
        | a small, rounded projection |  | 
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        | the expanded articular end of an epiphysis, separated from the shaft by a neck |  | 
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 | Definition 
 
        | a narrow connection between the epiphysis and the diaphysis |  | 
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 | Definition 
 
        | a smooth, rounded articular process |  | 
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        | a smooth, grooved articular process shaped like a pulley |  | 
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 | Definition 
 
        | a small, flat (smooth) articular surface |  | 
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        | a rounded passageway for blood vessels or nerves |  | 
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 | Definition 
 
        | a passageway through the substance of a bone |  | 
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 | Definition 
 
        | an elongate cleft (crack) |  | 
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        | Term 
 | Definition 
 
        | a chamber within a bone, normally filled with air |  | 
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