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Bone features
| Term | Definition |
|---|---|
| Openings and spaces Canal | Passageway through bone |
| Openings and spaces Fissure | Narrow, slit-like opening through bone |
| Openings and spaces Foramen | rounded passageway through bone |
| Openings and spaces Meatus | passageway through bone |
| Openings and spaces Sinus | cavity or hollow space in bone |
| Projections Crest | Narrow, prominent ridge-like projection |
| Projections Epicondyle | projection adjacent to a condyle |
| Projections Line | low ridge |
| Projections Ramus | angular extension of bone relative to the rest of the structure |
| Projections Spine | pointed, narrow process |
| Projections Trochanter | large, rough projection, found only on the femur |
| Projections Tubercle | small, round projection |
| Projections Tuberosity | large, round projection |
| Depressions Fossa | flattened, shallow depression |
| Depressions Fovea | depression in a bone |
| Depressions Sulcus | narrow groove |
| Articulating surfaces Condyle | large, smooth, rounded surface |
| Articulating surfaces Facet | small, flat, surface |
| Articulating surfaces Trochlea | smooth, pulley shaped surface |