Bone Markings Surface features of bones – Sites of attachments for muscles, tendons, and ligaments – Passages for nerves and blood vessels Categories of bone markings – Projections or processes — grow out from the bone surface – Depressions or cavities — indentations Bone Surface Markings projections where muscles, tendons, ligaments attach – tuberosity – large rounded projection – spinous process (or spine) – sharp, slender, pointed projection – trochanter – very large, blunt irregular shaped projection – crest – narrow ridge of bone Bone Surface Markings Projections that help to form joints – Head – bony expansion at the end of a long neck – Facet – smooth, almost flat surface – Condyle – rounded projection – Ramus – armlike arm of bone Bone Surface Markings Depressions and openings fro blood vessels and nerves to pass through – Foramen – round or oval opening in a bone – Meatus – canal-like – Fossa – shallow depression mostly to form a joint