| A | B |
| Condyle | A ROUNDED SURFACE that articulates with another bone |
| Facet | A smooth, flat, slightly CONCAVE or CONVEX articular surface |
| Crest | A narrow RIDGE |
| Process | Any bony prominence or BULGING OUTGROWTH from a bone |
| Protuberance | A bony outgrowth or PROTRUDING part |
| Spine | A sharp, slender, or NARROW process |
| Trochanter | Two massive processes unique to the FEMUR |
| Tubercle | A SMALL ROUNDED process, smaller than a Tuberocity |
| Tuberosity | A ROUGH ELEVATED surface |
| Fossa | A shallow, broad, or elongated BASIN |
| Sulcus | A GROOVE for a tendon, nerve, or blood vessel |
| Fissure | A SLIT through a bone |
| Foramen | A HOLE through a bone, usually round |
| Meatus | An OPENING into a canal |
| Sinus | An air-filled SPACE in a bone |