| A | B |
|---|
| Angle | a corner |
| Body | main portion of a bone |
| Condyle | rounded bump; usually fits into a fossa on another bone forming a joint |
| Crest | moderately raised ridge; generally a site for muscle attachment |
| Epicondyle | bump near a condyle; often gives the appearance of a "bump on a bump"; for muscle attachment |
| Facet | flat surface that forms a joint with another facet or flat bone |
| Fissure | long, cracklike hole for blood vessels and nerves |
| Foramen | round hole for vessels and nerves |
| Fossa | depression; often receives an articulating bone |
| Head | distinct epiphysis on a long bone, separated from the shaft by a narrowed portion or neck |
| Line | similar to a crest but not raised as much; often rather faint |
| Margin | edge of a flat bone, or flat portion on edge of a flat area |
| Meatus | tubelike opening or channel |
| Neck | narrowed portion, usually at the base of a head |
| Notch | a v-like depression in the margin |
| Process | a raised area or projection |
| Ramus | curved portion of a bone, like a ram's horn |
| Sinus | cavity within a bone |
| Spine | similar to a crest but raised more; a sharp, pointed process; for muscle attachment |
| Sulcus | groove or elongated depression |
| Trochanter | large bump for muscle attachment |
| Tuberosity | oblong, raised bump, usually for muscle attachment; smaller one is called a tubercle |
