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Terms Assoc. With Bone Anatomy
Learn what the specific terms associated with bones mean
40
Anatomy
Undergraduate 1
10/18/2013

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