Narrow slit between adjacent parts of bones through which blood vessels or nerves pass.

Ex: Superior orbital fissure of the sphenoid bone

Opening (foramen=hole) through which blood vessels, nerves, or ligaments pass

Ex: Opitic foramen of the sphenoid bone

Shallow depression (fossa = trench)

Ex: Coronoid fossa of the humerus

Furrow (sulcus=groove) along a bone surface that accomodates a blood vessel, nerve, or tendon

Ex: intertubercular sulcus of the humerus

Tubelike opening (meatus = passway)

Ex: External auditory meatus of the temporal bone

Large, round protuberance at the end of a bone

Ex: Lateral condyle of the femur

Smooth flat articular surface.

Ex: Superior articular facet of a vertebra

Rounded articular projection supported on the neck (constricted portion) of a bone.

Ex:Head of the femur

Prominent ridge or elongated projected

Ex: Illiac crest of the hip bone

Projection above a condyle

Ex: Medial epicondyle of the femur

Long, narrow ridge or border (less prominent than a crest)

Ex: Linea aspera of femur

Sharp, slender projection

Ex: Spinous process of a vertebra

Very large projection

Ex: Greater tronchanter of the femur

Small, rounded projection

Ex: Greater tubercle of the humerus

Large, rounded, usually roughened projection

Ex: Ischial tuberosity of the hip bone