Fissure
a narrow slit-like opening, usually between bones
Foramen
a hole in a bone
Meatus
a tube-shaped canal in a bone
Sinus
a sponge-like cavity in bone which is lined with mucous membrane
Groove or Sulcus
a steep continuing depression in or on a bone V
Fossa
a shallow or a hollow depression in or on a bone (
Process
a portion of bone that can enter into the formation of joints, but usually is used for muscle attachment
Condyle
a rounded projection of bone that an enter into the formation of a joint
Head
a round expanded articular projection beyond the narrow neckline portion of a long bone
Neck
a constricted portion of a long bone that is located below the head
Facet
a smooth flat articular surface
Tubercule
a small rounded projection of a bone
Tuberosity
a large roughened projection on a bone
Trochanter
a very large blunt process
Crest
a prominent narrow ridge on a bone
Spine
a sharp, slender, often pointed process on a bone
Epicondyle
a rounded projection above the condyles.