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Bone Markings. Bone Markings T = projections F = depressions (except facet). Condyle ( from knuckle ). R ounded articular projections; mandible
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Condyle ( from knuckle) Rounded articular projections; mandible A rounded protuberance at the end of a long bone that gives attachment to tendons and articulates with the adjacent bone (fitting into the socket) thus forming a joint.
Crest Narrow ridge of bone, usually prominent
Epicondyle Raised area on or above a condyle
Facet (as flat surface of a gemstone) Smooth, nearly flat articular surface; as of rib
Fissure Narrow, slit-like opening (inferior orbital)
Foramen Round or oval opening through a bone
Fossa (ditch or trench) Shallow basin-like depression in a bone, often serving as an articular surface; temporal fossa
Groove Furrow; mandible
Head Bony expansion carried on a narrow neck; as of rib
Line Narrow ridge of bone, less prominent than a crest
Meatus (going, passage) Canal-like passageway (external auditory meatus)
Notch Indentation at edge of structure
Process Any bony projection or prominence
Ramus Arm-like branch of bone that is a depression; mandible
Sinus Bone cavity, filled w/air & lined w/mucous membrane
Spine Sharp, slender, often pointed projection
Trochanter Very large, blunt irregularly shaped process (femur only location)
Tubercle Small rounded (wart-like) projection or process; adductor tubercle
Tuberosity Large, rounded projection, may be roughened for muscle attachment (ex: behind last molar)
condyle • A. armlike bar of bone; mandible • B. furrow; mandible • C. rounded articular projections; mandible
crest • A. any bony prominence • B. narrow ridge of bone, usually prominent • C. large, rounded projection, may be roughened
epicondyle • A. smooth, nearly flat articular surface; as of rib • B. raised area on or above a condyle • C. Small rounded projection or process; adductor tubercle
facet • A. smooth, nearly flat articular surface; as of rib • B. rounded articular projection • C. bony expansion carried on a narrow neck; as of rib
fissure • A. narrow, slit-like opening (inferior orbital) • B. furrow; mandible • C. indentation at edge of structure
foramen • A. bone cavity, filled w/air & lined w/mucous membrane • B. round or oval opening through a bone • C. indentation at edge of structure
fossa • A. bone cavity, filled w/air & lined w/mucous membrane • B. shallow basin-like depression in a bone, often serving as an articular surface; temporal fossa • C. indentation at edge of structure
groove • A. narrow, slit-like opening (inferior orbital) • B. furrow; mandible • C. rounded articular projections; mandible
head • A. smooth, nearly flat articular surface; as of rib • B. any bony prominence • C. bony expansion carried on a narrow neck; as of rib
line • A. narrow ridge of bone, less prominent than a crest • B. very large, blunt irregularly shaped process (femur only location) • C. Small rounded projection or process; adductor tubercle
meatus • A. bone cavity, filled w/air & lined w/mucous membrane • B. canal-like passageway (external auditory meatus) • C. indentation at edge of structure
notch • A. bone cavity, filled w/air & lined w/mucous membrane • B. round or oval opening through a bone • C. indentation at edge of structure
process • A. smooth, nearly flat articular surface; as of rib • B. any bony prominence • C. sharp, slender, often pointed projection
ramus • A. armlike bar of bone; mandible • B. furrow; mandible • C. rounded articular projections; mandible
sinus • A. bone cavity, filled w/air & lined w/mucous membrane • B. canal-like passageway (external auditory meatus) • C. indentation at edge of structure
spine • A. smooth, nearly flat articular surface; as of rib • B. raised area on or above a condyle • C. sharp, slender, often pointed projection
trochanter • A. any bony prominence • B. very large, blunt irregularly shaped process (femur only location) • C. Small rounded projection or process; adductor tubercle
tubercle • A. narrow ridge of bone, less prominent than a crest • B. raised area on or above a condyle • C. small rounded projection or process; adductor tubercle
tuberosity • A. any bony prominence • B. narrow ridge of bone, usually prominent • C. large, rounded projection, may be roughened for muscle attachment (ex: behind last molar)