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types of bones ![click to hear : types of bones click to hear : types of bones](../../../images/speaker-vert.gif)
Bones: rigid structures connected by joints to which muscles are attached. The skeleton has more than 200 bones divided into four major groups.
irregular bone ![click to hear : irregular bone click to hear : irregular bone](../../../images/speaker-vert.gif)
Bones of varying shapes and sizes, such as the vertebrae and certain bones of the skull or pelvis.
flat bone ![click to hear : flat bone click to hear : flat bone](../../../images/speaker-vert.gif)
Thin bones that protect certain organs, including most of the bones of the skull as well as the scapula.
short bone ![click to hear : short bone click to hear : short bone](../../../images/speaker-vert.gif)
Bones shaped somewhat like cubes that facilitate flexibility of the joints; examples include the bones of the wrist and ankle.
long bone ![click to hear : long bone click to hear : long bone](../../../images/speaker-vert.gif)
Elongated bone to which powerful muscles, such as those of the leg and arm, are attached.