Skull sutures and bone terminology

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Lambdoid Suture

Coronal Suture

Sagittal Suture

Squamous Suture

Tuberosity

Large rounded projection, rough (bump, curve outward)

Crest

Narrow ridge of the bone (raised edge of the bone)

Trochanter

Large, blunt, irregularly shaped (femur)

Line

Narrow ridge, less prominent than crest (between two bumps)

Tubercle

Small rounded projection or process (bumps)

Epicondyle

Raised area on or above condyle (mountain with valley)

Spine

Sharp, pointed projection (bump)

Process

Bony prominence

Head

Rounded bone on top of neck

Facet

Smooth, flat joint surface (smooth connecting points)

Condyle

Rounded articular projection (hill with valley)

Groove

Furrow or Gutter

Fissure

Narrow, slit-like opening

Foramen

Hole through bone

Notch

Piece cut out of bone edge

Meatus

Canal passage way

Sinus

Air filled cavity, lined by mucus membrane

Fossa

Depression into bone (valley)