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Skeletal Terms

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Body
The main part of a bone which other markings often extend.
Canal
A tube-like opening through a bone. Nerves and blood vessels often pass through a bone.
Condyle
A relatively large, rounded projection (bump) where the bone articulates with part of another bone.
Crest
A narrow ridge on the bone, usually found where a flat muscle, tendon, or ligament attaches to the bone.
Diaphysis
The cylindrical shaft of a long bone. May have other markings on it.
Epicondyle
A reletively small, rounded bump where muscles, tendons, and ligaments attach to the bone. Always located on the surface of a condyle.
Epiphysis
The enlarged end of a long bone. Often includes other markings such as condyles and epicondyles.
Facet
A smooth, flat area where the bone articulates with part of another bone.
Fissure
A narrow elongated opening, usually irregular in shape. Nerves and blood vessels often pass through fissures.
Foramen
A round or oval hole through a bone, not as long as a canal or meatus.
Fossa
A large, flat region or shallow depression on a bone.
Groove
A narrow depression on a bone through which some other structure runs.
Head
A rounded enlargement carried on a neck of a bone which takes part in forming a joint.
Line
A narrow ridge, smaller than a crest, but also a place where a flat ligament, tendom, or muscle attaches to a bone.
Meatus
Tube-like opening or passage in a bone.
Neck
A narrow region at one end of a long bone, leading to the head.
Process
A general term for a long projection from a bone
Protuberance
A general term for a small, irregular projection from a bone.
Ramus
A round of flattened extension from the body of a bone, usually for articulation with another bone.
Sinus
An air-filled cavity within a bone, lined by mucous membrane.
Spine
A sharp, slender projection of a bone for muscle, tendon, or ligament attachment.
Trochanter
A large, irregular shaped projection of a bone.
Tubercle
A small round projection of a bone.
Tuberosity
A large, rounded projection of a bone for muscle attachment, usually rough.
Wing
An elongates, flattened extension of a bone.