1. Ch 3 The Skeletal System

2. Overview
Bones> oss/e, oss/I, oste/o, ost/o: Act as the framework for the body, protect the internal organs, and store the mineral calcium.
Bone Marrow> myel/o: Forms some blood cells.
Cartilage> chondr/o: Creates a smooth surface for motion within the joints and protects the ends of the bones.
Joints> arthr/o: Work with the muscles to make a variety of motions possible.

3. Tissues of a Bone:
Periosteum: The tough, fibrous tissue that forms the outermost covering of the bone.
Compact Bone: The hard, dense, and very strong bone that forms the outer layer of the bones.
Spongy Bones: Lighter and not as strong as compact bone, it is commonly found in the ends and inner portions of long bones such as the femur. Red bone marrow is located within this spongy bone.
Medullary Cavity: Located in the shaft of a long bone. It is lined with endosteum and contains yellow bone marrow.

4. Review of Skull Bones

5. Words
Arthrosclerosis> stiffness of the joints, especially in the elderly
Osteochondroma> the most common benign bone tumor
Costals> 12 pairs of ribs
Cranium> the portion of the skull that encloses the brain
Kyphosis> abnormal curvature of the spine AKA: humpback
Lordosis> abnormal curvature of the spine AKA: swayback
Myeloma> malignant tumor
Osteoarthritis> a form of arthritis commonly associated with aging AKA: wear and tear arthritis
Arthrodesis> surgical stiffening of a joint or joining of spinal vertebrae AKA: fusion
Arthrolysis> surgical loosening of a joint

6. Ch 3 Terms arthr/o> body joint chondro/o> cartilage
cost/o> rib
crani/o> skull
kypho/o> bent, hump
lord/o> curve, swayback, bent
myel/o> spinal cord, bone marrow
oss/e, oss/I, ost/o, oste/o> bone
-desis surgical fixation of bone or joint, to bind, tie together
–lysis breakdown, separation, setting free, destruction, loosening