Anatomy Vocab Chapter 5

35 terms by Rachellesmith7 

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Amphiarthroses/cartilaginous joint

slightly movable joints. Bones united by cartilage, no joint cavity is present

Ankylosis

When the scar tissue eventually ossifies, and the bone ends become firmly fused.

Appendicular skeleton

One of the two subdivisions of the skeleton, the bones of the limbs and girdles that are attached to the axial skeleton.

Articulation (joint)

The junction of two or more bones; an articulation.

Axial Skeleton

one of the two subdivisions of the skeleton, the bones that form the longitudinal axis of the body, the skull, vertebral column, ribs, and sternum.

Bursitis

"water on the knee" due to the inflammation of bursae or synovial membrane.

Canaliculi

Hairlike canals that connect lacunae to each other and the central canal

Central Haversion Canal

Canal that opens in the center of the osteon and contains blood vessels and nerves

Diaphysis

Elongated shaft of a long bone.

Diarthroses/synovial joint

freely movable joints

Dislocation

happens when a bone is forced out of its normal position in the joint cavity.

Epiphyseal plate

a flat plate of hyaline cartilage seen in young, growing bone. Cause the lengthwise growth of the bone.

Epiphyses

the ends of the long bone, consists of a thin layer of compact bone enclosing an area filled with spongy bone.

Gout (y arthritis)

a disease in which uric acid accumulates in the blood and may be deposited as needle-shaped crystals in the soft tissues of joints.

Hematoma

blood-filled swelling when a bone breaks.

Hematopoiesis

Blood cell formation that occurs within the marrow cavities of certain bones.

Kyphosis

abnormal outward curvature of the thoracic spine. Humpback

Lacunae

Tiny cavities in the matrix that contain osteocytes.

Lamellae

Concentric rings/circles made up of groups of hollow tubes of bone matrix that the lacunae are arranged in.

Lordosis

Abnormal anterior curvature of the lumbar spine (sway-back condition)

Medullary cavity

The cavity of the shaft that is a storage area for adipose (fat) tissue, also called yellow marrow.

Ossification

process of bone formation that involves two major phases. First, hyaline cartilage model is covered with bone matrix and then the cartilage is digested away opening a medullary cavity within the newly formed bone.

Osteoarthritic

the most common form of arthritis, a chronic degenerative condition that typically affects the aged.

Osteoblast

bone-forming cells

Osteoclast

giant bone-destroying cells in bones that break down bone matrix and release calcium ions into the blood.

Osteocytes

Mature bone cells found within the matrix in tiny cavities called lacunae.

Osteoporosis

a condition in which the body's bones become weak and break easily.

Reduction

a realignment of the broken bone ends (treats fractures)

Rheumatoid arthritis

a chronic inflammatory disorder, it's a disorder in which the body's immune system attempts to destroy its own tissues.

Rickets

a disease of children in which the bones fail to calcify, the bones soften and the legs bow.

Scoliosis

abnormal lateral curvature of the spine.

Synarthroses/fibrous joint

an immovable joint

Synchondroses

an almost immovable joint between bones bound by cartilage.

Syndesmoses

the connecting fibers are longer than those of sutures; thus the joint has more "give". An immovable joint in which bones are joined by connective tissue. Between tibula and fibula.

Volkmann's canal

Completes the communication pathway from the outside of the bone to its interior which run into the compact bone at right angles to the shaft.

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