Skeletal System

Front

Long Bones

Back

act as a lever to aid in movement

Front

Short Bones

Back

provide support and stability with little movement

Front

Flat Bones

Back

have a large surface area for attaching to muscles

Front

Irregular Bones

Back

have a highly specialized shape and structure

Front

Compact Bones

Back

dense bone in which the bony matrix is solidly filled with organic ground substance and inorganic salts

Front

Spongy Bones

Back

consists of plates and bars of bone adjacent to small, irregular cavities that contain red bone marrow

Front

Osteon

Back

long cylinders that act as tiny weight-bearing pillars in the bone

Front

Haversian canal

Back

runs through the middle of each osteon and contains small blood vessels for nourishment and nerve fibers for signaling

Front

Projections

Back

place where muscle and ligaments attach

Tags

NGSS.MS-LS4-2

Front

Surfaces

Back

places that form joints