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Common Bone Marking Terminology

Terms

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Process
Any projection or bump
or a general term for a projection from the surface of a bone.
Ramus
An extention of a bone making an angle to the rest of the structure or a branch
Trochanter
A large rough projection or a large bump
Tuberosity
A rough projection or a relatively larger bump on a bone
Tubercle
A small rounded projection or a relatively small bump on a bone
Crest
A prominent ridge or an elevated ridge of bone
Line
A low ridge or a smaller elevation than a crest
Spine
A pointed process or a short sharp projection
Head
The expanded articular end of an epiphysis, often seperated from the shaft by a narrower neck or a hemispheric projection that articulates with another bone
Neck
A narrower connection between the epiphysis and diaphysis or a connection below the head
Condyle
A smooth, rounded articular process or an irregular, smooth surface that articulates with another bone
Trochlea
A smooth, grooved articular process shaped like a pulley
Facet
A small, flat articular surface or a smooth, flat surface
Fossa
A shallow depression
Sulcus
A narrow groove or an elongated depression
Foramen
a rounded passageway for blood or nerve vessels or a shallow hole
Fissure
An elongated cleft
Meatus or canal
A passageway through the substance of bone or a tunnel or deep hole
Sinus or antrum
A chamber within a bone normally filled with air or a cavity in a bone

Deck Info

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