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Bones & structure

Skeletal system includes -Bones of skeleton -cartilages -ligaments -other connective tissue
Main organ of the system Bones
What are bones composed of Osseous tissue, dense regular connective tissue, dense irregular connective tissue and bone marrow.
What kind of organ are they? Very dynamic and active
What are the primary functions of the skeletal system? -support -storage -blood cell production -protection -leverage/movement
How many homes does a mature human have? 206
What are bones classified into their 6 categories using? -shape -structure
Structural bones "wormian bones" like the small, flat oddly shaped bones found between the flat bones of the skull. They range from the size of a grain of sand to a quarter. Their borders are like pieces of a jigsaw puzzle. -number varies among individuals
Irregular bones Have complex shapes with short, flat notched, or ridged surfaces. The vertebrae that form the spinal column, the bones of the pelvis and serveral bones in the skull.
Short bones Are boxlike in appearance -carpal bones (wrists) -tarsal bones (ankles)
Flat bones Have this parallel surfaces. -form the roof of the skull -the sternum (breast bone) -the ribs -and the scapulae (shoulder blades)
What do flat bones do? They provide protection for underlying soft tissue and offer an extensive surface area for the attachment of skeletal muscles.
Long bone Long and slender -located in forearm -thigh -leg -palms -soles -fingers -toes
What is the largest and heaviest bone in the body? Femur (long bone of the thigh)
Sesamoid bones (patallae-knee cap) Are usually small, round and flat. -knee caps -develope within tendons near joint of knees, hands and feet. -hand and feet Not everyone has them where they can go but everyone has kneecaps.
Bone markings -projections -openings and depressions
Bone marking (projections) -where muscles, tendons and ligaments attach -at articulations with other bones
Bone markings (openings and depressions) For passage of blood vessels and nerves
Ramus Part of the bone that forms an angel with the rest of the structure
Sinus Chamber within a bone, normally filled with air.
Process Projection or bump (cheek bone)
Foramen Rounded passageway for blood vessels or nerves
Fissure Deep furrow, cleft or slit
Meatus Passage or channel, especially the opening of a canal
Canal Duct or channel
Created by: Garciamentzer



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