Name

Description

Example

Condyle

rounded articular projection

 femur: distal

Crest

prominent narrow ridge

os coxa: iliac crest

Epicondyle

 elevated area on or above condyle

humerus: lateral & medial

Facet

smooth, nearly flat articular surface

vertebral facets

Fissure

narrow slit-like opening

orbit: superior & inferior

Foramen

round opening through bone

mental foramen, foramen magnum

Fossa

shallow depression, often articular

temporal: mandibular fossa

Groove

furrow

humerus: inter tubercular groove

Head

rounded expansion, carried on neck

humerus

Line

narrow low ridge

femur: linea aspera

Meatus

canal-like passage way

temporal bone: ext auditory meatus

Ramus

arm-like extension of bone

mandibular ramus

Sinus

cavity within a bone, air & mucous membrane

facial sinuses

Spine

sharp, slender pointed projection

os coxa: iliac spines

Trochanter

large, blunt process

only on femur

Tubercle

small rounded projection

humerus: greater & lesser

Tuberosity

large rounded projection

humerus: deltoid tuberosity

Process

a projection from a bone

styloid process of the temporal bone