Bone Classification by Shape
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Bones classify by shape into long, short, flat, and irregular types, each shape suited to a different mechanical role in support or protection.
Show
The femur is a long bone built for leverage; the flat skull bones instead form a protective shell.
Watch for
A bone's classification describes overall shape, not composition — both spongy and compact tissue appear across every shape.