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14 Cards in this Set
- Front
- Back
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What are the two divisions of the skeletal system?
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Axial and Appendicular Skeleton
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Axial Skeleton
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Consists of the bones that lie around the longitudinal axis of the body . 80 bones. Skull, Vetrebal Column, Ribs and Sternum.
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Appendicular Skeleton
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Consists of the bones of the upper and lower limbs and the girdles that connect the limbs to the axial skeleton.
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Long Bones
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Greater in length than they are in width
Ex. Femur |
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Short Bones
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Cube Shaped
Ex. Wrist bones |
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Flat Bones
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Thin
Ex. Sternum |
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Irregular Bones
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Complex in shape.
ex Vertebrae |
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Sesamoid bones
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Bones shaped like sesame seeds. Protects tendons from excessive wear and tear.
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Sutural Bones
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Small Extra bone plates located within the sutures of cranial bones.
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Two Types of Surface Markings
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Depressions (and openings) & Processes
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Depression / Openings
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Allow for the passage of blood vessels and nerves and forms joints
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Processes
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Projection or outgrowths of bone that form joints. Attachment points for ligaments and tendons
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Types of Processes
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Condyle (large round articular bony process) , Epicondyle, Spinous Process(slender projection from a vertebrae), Tubercle (small rounded projection), tuberosity (large bony prominence), trochanters (two quite large projections on the femur)
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Types of Depression/ Openings
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Foramen(opening in bone) , Fossa(shallow depression) , Meatus (tubelike canal)
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