Bone Markings

Fissure

A narrow slit-like opening

Process

Any bone prominence

Head

Bony expansion carried on a narrow neck

Meatus

Canal-like passageway

Groove

Furrow (uncovered passage)

Notch

Indentation at the edge of a structure

Tuberosity

Large rounded projection

Line

Narrow ridge of bone; less prominent than a crest

Crest

Narrow ridge of bone; usually prominent

Foramen

Round or oval opening through a bone

Condyle

Rounded articulating projection

Fossa

Shallow, basinlike depression in a bone, often serving as an articular surface

Facet

Smooth, nearly flat articulating surface

Trochanter

Very large, blunt, irregularly shaped process (only located on femur)

Sinus

cavity within a bone, filled with air and lined with mucous membrane

Epicondyle

raised area on or above a condyle

Spine

sharp, slender, often pointed projection

Tubercle

small rounded projection or process