| Term | Definition |
|---|
| circumduction | one of 4 basic movements allowed by joints |
| articular cartilage | thin layer of cartilage surrounding the bone in the joint space. |
| sinus | hollow air cavity within a bone |
| cancellous bone | spongy, porous, bone tissue in the inner part of a bone |
| metaphysis | flared portion of a long bone, between the diaphysis (shaft) and the epiphyseal plate (in this term, meta- means between). |
| diaphysis | shaft, or mid portion, of a long bone |
| trochanter | large process at the neck of the femur,; attachment site for muscles and tendons |
| spinous process or spine | vertical column or back bone |
| foramen | opening or passage in bones where blood vessels and nerves enter and leave. |
| joint | any one of the articulations between bones |
| articulation | The place of a union between two or more bones; a joint |
| head | uppermost extremity containing the brain |
| abduction | to take away from; away from midline |
| rotation | the gyration of a bone around its central axis |
| sutures | joint between bones, such as the skull (cranium) |
| fossa | shallow cavity in a bone |
| epiphysis | each end of a long bone; the area beyond the epiphyseal plate |
| fontanelle | soft spot (incomplete bone formation) between the skull bones of an infant |
| condyle | knudkle-like process at the end of a bone near a joint |
| olecranon process | large process on the proximal end of the ulna; the point of the flexed elbow |
| tubercle | rounded, small process on bone; attachment site for muscles and tendons. |
| flexion | a movement allowed by certain joints. Decreases angle between the adjoining joints (elbow) |
| compact bone | hard, dense bone tissue, usually found around the outer portion of bones |
| supination | lying on the back-supine position |
| axial | pertaining to situated on axis of body structure |
| ossicle | bone of middle ear |
| bursa | a pad like sac or cavity found in connective tissue near the joing |
| ligament | strong band of fibrous connective tissue connecting the articular ends of bones and serving to bind the bones together and to facilitate or limit motion |
| xiphoid process | lower, narrow portion of the sternum |
| periosteum | membrane surrounding bones; rich in blood vessels and nerve tissue |
| eversion | a turning outward |
| arthrology | study of joints |
| cartilage | non-vascular, dense supporting connective tissue |
| process | series of related events that follow a sequence |
| endosteum | a fine membrane that lines the medullary cavity of a bone |
| adduction | to move toward the midline |
| meatus | opening or tunnel through any body part |
| extension | straightening movement allowed by certain joints |
| tuberocity | rounded process on bone; attachment site for muscles and tendons. |
| medullary cavity | central, hollowed-out area in the shaft of a long bone |
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