| A | B |
|---|
| Meatus | Tube-like opening or channel |
| Body | Main portion of the bone |
| Spine | A raised, sharp pointed process. |
| Line | Slightly raised process for muscle attachment. |
| Condyle | Large, raised bump, fits into a fossa, forms a joint |
| Foramen | Round hole in a bone for vessels and nerves |
| Tuberosity | Oblong, raised bump; usually for muscle attachment |
| Crest | Moderately raised ridge; site for muscle attachment. |
| Fissure | Long, crack-like hole in bone for blood vessels and nerves |
| Trochanter | Largest bump on a bone for muscle attachment |
| Facet | Flat surface that forms a joint with another flat bone |
| Margin | Edge of a flat bone |
| Head | Distinct epiphysis on a long bone, separated from the shaft by a narrowed portion |
| Fossa | Depression or ditch in a bone. |
| Ramus | Large, curved portion of a bone |
| Sinus | Hollow cavity within a bone |
| Epicondyle | A smaller bump on or near a condyle |
| Notch | A V-like depression in the margin or edge of a flat area |
| Tubercle | A smaller tuberosity for muscle attachment |
| Process | A raised area or projection |
| Neck | A narrowed portion of a bone, usually at the base of a head |
| Angle | A corner of a bone |
