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        | In anatomy, any vaulted or arch-like structure. |  | 
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        | The principle mass of any structure (bone). |  | 
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        | A duct or channel; a tubular structure.  Different from a foramen or meatus. |  | 
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        | A structure comparable to a snail shell in shape, as the turbinates of the nose. |  | 
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        | A rounded articular surface at the end (usually) of a bone rather like rockers on a rocking chair. |  | 
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        | A ridge especially a bony ridge.  Sometimes CRISTA. |  | 
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        | A circumscribed area raised above the general level of the surrounding surface particularly on a bone surface. |  | 
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        | A small smooth area on a bone generally where there was once an articular cartilage. |  | 
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        | A deep furrow cleft, or slit.  (Not to be confused with a sulcus). |  | 
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        | The membranous interval at the margin of the cranial bones in the fetus/neonate.  Commonly called "soft spot". |  | 
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        | An aperature or perforation through a bone through which something usually passes (nerve, vessels, etc.). |  | 
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        | A slight depression below the surface level of a bone.  Larger in area than a FOVEA. |  | 
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        | A small depression below the surface level of a bone resembling a "pit". |  | 
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        | Same as a SULCUS.  Any long narrow groove, furrow or slight depression on the surface of a bone. |  | 
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        | The rounded extremity of a long (usually) bone.  Connected to the BODY by the NECK. |  | 
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        | A long, narrow mark, strip or streak distinguished from the adjacent area by texture or slight elevation. |  | 
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        | The edge of a surface of a bone or bones (as in the margin of the orbit). |  | 
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        | The external OPENING to a canal(frequently a bony canal). |  | 
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        | Region where the HEAD joins the Body of a bone. |  | 
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        | A short, narrow, V-shaped (usually) indentation along the edge, or margin of a bone. |  | 
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        | A thin, relatively flat area of bone protruding from a bone.  May be horizontal or vertical. |  | 
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        | A projection of outgrowth of a bone.  Sometimes conical but may be flattened. |  | 
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        | A projection or outgrowth of a bone.  Most often "knob-like". |  | 
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        | Part of an irregularly shaped bone forming a "bridge-like" projection or outgrowth toward an adjacent bone. |  | 
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        | A rough (usually) linear elevation of the surface of a bone (similar to a crest). |  | 
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        | Refers to bones growing in soft tissues and not articulating directly with any other bone (e.g. patella). |  | 
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        | The hollow cavities of bones surrounding the nasal region of the skull. (Lined with mucous membrane). |  | 
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        | A short, sharp "sticker-like" process of a bone (i.e. spinous process). |  | 
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        | Very similar to SPINE but perhaps more "needle-like" (i.e. styloid process). |  | 
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        | Any long narrow groove, furrow, or slight depression on the surface of a bone. |  | 
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        | The outer portion of a bone that is distinguishable from surrounding area by texture, roughness etc. |  | 
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        | Large, bony regions protruding from the surface of a bone.  Limited to the femur in humans. |  | 
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        | A slight elevation from the surface of a bone formed by the attachment of a muscle tendon, or ligament. |  | 
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        | The adjective of tubercle. e.g. Tibial tuberosity. |  | 
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        | Upon, following or subsequent to.  Often refers to "just above". e.g. Epicondyle |  | 
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        | A position below the part denoted  by the root word. e.g. Infraorbital (below the orbit). |  | 
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        | After, subsequent to, behind, hindermost or following. Cf. post- |  | 
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        | Beneath, under inferior.  See infra_. |  | 
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        | A position above the part denoted by the root word.  e.g. supraorbital (above the orbit). |  | 
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