Biology / Unit 13 Bio 3091 short lesson, about 20 seconds
Bone Classification by Shape
Captions available
The idea
Bones classify by shape into long, short, flat, and irregular types, each shape suited to a different mechanical role in support or protection.
In practice
The femur is a long bone built for leverage; the flat skull bones instead form a protective shell.
Where people slip
A bone's classification describes overall shape, not composition — both spongy and compact tissue appear across every shape.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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