Skeletal System

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Terms in this set (...)

Ossification
Formation of bone
Compact bone
Hard, dense bone tissue
Spongy bone
Also known as cancellous bone inside compact bones at widened ends of long bones, has spaces in matrix in between trabeculae.
Fontanelles
Areas of the infants skull that are not yet fused, usually disappear by age 2
Sprain
An injury in which the ligaments holding bones together are stretched too far and tear.
Osteoarthritis
the deterioration of articular cartilage in a joint causing overgrowth of bone material and pain in joints particularly.
Osteoporosis
A bone thinning disease due to lack of calcium intake or absorption.
Gout
Occurs when urate crystals accumulate in the joints causing them to swell.
Red bone marrow, spongy bone
Where red blood cells are formed in adults.
Red bone marrow, medullary cavity
Where red blood cells are formed in infants
Cartilaginous joints
Bone ends connected by cartilage; i.e. intervertebral joints, ribs, etc.
Synovial joints
Created where two bones articulate to permit a variety of motions
Fibrous Joints
Fibrous joints connect bones without allowing any movement. i.e. bones of the skull and the pelvis
Condyloid joint
bi-axial joint such as the wrist, knuckle, or mandible
Hinge joint
Joint between bones (as at the elbow or knee) that permits motion in only one plane
Ball and socket joint
Joints that allow movement in all directions. i.e. shoulder & hip
Pivot joint
Allows movement with limited rotation; between the head and neck
Epiphyseal plate
Growth plate of a bone usually at the site of articulation
Osteomyelitis
Inflammation of bone caused by pus-forming bacteria
Scoliosis
Abnormal lateral curvature of the spine
Epiphysis
The end part of a long bone, initially growing separately from the shaft.
Diaphysis
The shaft of a long bone.
Osteon
A structural unit of compact bone.
Leprosy (Hansen's Disease)
An infection of Mycobacterium leprae bacteria which causes severe, disfiguring skin sores and nerve damage in the arms, legs, and skin areas around the body.
Yellow marrow
A soft, fatty material stored in the medullary cavity of long bones.