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5.01
Divisions of the skeleton; bone formaiton; structure of a long bone; joints
| Term | Definition |
|---|---|
| acetabulum | the bony socket in the hip bone that holds the head of the femur(s) |
| articualtion | a joint |
| atlas | the first cervical vertabra |
| axis | the second cervical vertabra |
| bone | a calcified form of dense connective tissue; aka osseous tissue |
| bone marrow | the soft material that fills the bone cavities |
| yellow bone marrow | marrow that fills the central cavities of long bones |
| red bone marrow | the formation site of blood cells located in spongy bone tissue |
| bursa | a fluid-filled sac that reduces friciton near a joint |
| cartilage | a dense connective tissue found in the skeleton, larynx, trachea, and bronchi; also the precursor to most bone tissue |
| diarthrosis | a freely movable joint; aka synovial joint |
| diaphysis | the shaft of a long bone |
| epiphyseal plate | the growth region of a long bone that appears as the epiphyseal line when bone growth stops |
| epiphysis | the irregularly shaped end of a long bone |
| ilium | the large, flared, superior portion of the pelvic bone |
| joint | the junction between 2 bones; aka articulation |
| ligament | a strong band of connective tissue that joins one bone to another |
| metaphysis | the bone region between the diaphysis and the epiphysis that acts as the growth region of a long bone during development |
| ossification | the formation of bone tissue |
| pelvis | the large ring of bone at the inferior trunk formed by the 2 hip bones (ossa coxae) joined to the sacrum and coccyx |
| ossa coxae | the hip bones; each os coxae is formed by the ilium, ischium, and pubis |
| periosteum | the fibrous membrane that covers a bone's surface |
| resorption | the removal of a bone by breakdown and absorption into circulation |
| skeleton | the body's bony framework that consists of 206 bones |
| axial skeleton | the portion of the skeleton that contains 80 bones and is made of the skull, spinal, column, ribs, and sternum |
| appendicular skeleton | the portion of the skeleton that contains 126 bones and is made of the arm and leg bones, shoulder girdle, and pelvis |
| suture | an immovable joint |
| symphysis | a slightly movable joint |
| synovial fluid | the fluid in a freely movable (diarthrotic) joint |
| synovial joint | a freely movable joint that has a joint cavity containing synovial fluid; aka diarthrosis |
| tendon | a fibrous band of connective tissue that attaches a muscle to a bone |
| thorax | the upper part of the trunk between the neck and abdomen formed by the 12 pairs of ribs and the sternum |
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