Bone marking types
Foramen
Round hole for vessels and nerves (pl., foramina)
Condyle
Rounded bump; usually fits into a fossa on another bone to form a joint
Line
Similar to a crest but not raised as much (is often rather faint)
Spine
Similar to a crest but raised more; a sharp, pointed process; for muscle attachment
Body
The main portion of a bone
Meatus
Tubelike opening or channel (pl., meatus or meatuses)
Notch
A V-like depression in the margin or edge of a flat area
Angle
A corner
Neck
A narrowed portion, usually at the base of a head
Process
A raised area or projection
Epicondyle
Bump near a condyle; often gives the appearance of a "bump on a bump"; for muscle attachment
Sinus
Cavity within a bone
Ramus
Curved portion of a bone, like a ram's horn (pl., rami)
Fossa
Depression; often receives an articulating bone (pl., fossae)
Head
Distinct epiphysis on a long bone, separated from the shaft by a narrowed portion (or neck)
Margin
Edge of a flat bone or flat portion of the edge of a flat area
Facet
Flat surface that forms a joint with another facet or flat bone
Sulcus
Groove or elongated depression (pl., sulci)
Trochanter
Large bump for muscle attachment (larger than a tubercle or tuberosity)
Fissure
Long, cracklike hole for blood vessels and nerves
Crest
Moderately raised ridge; generally a site for muscle attachment
Tuberosity
Oblong, raised bump, usually for muscle attachment; also called a tuber; a small tuberosity is called a tubercle