| A | B |
|---|
| process | any projection or bump |
| ramus | any extension of tha bone making an angle to the rest of the structure |
| trochanter | a large rough projection |
| tuberosity | a smaller rough projection |
| tubercle | a small rounded projection |
| crest | a prominent ridge |
| line | a low ridge |
| head | the expanded articular end of and epiphysis, separated from the shaft by the neck |
| neck | a narrow connection between the epiphysis and diaphysis |
| condyle | a smooth rounded articular process |
| trochlea | a smooth grooved articular process shaped like a pulley |
| facet | a small flat articular surface |
| spine | a pointed process |
| fossa | a shallow depression |
| sulcus | a narrow groove |
| foramen | a rounded passageway for blood vessels and/or nerves |
| fissure | an elongate cleft |
| sinus | a chamber within a bone, normally filled with air |
