what is the difference between a compact bone and spongy bone?

Question

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Answer 1

In compact bone, the osteocytes and layers of extracellular matrix concentircally cluster around a central canal and form a cylinder-shaped unit called an osteon (sometimes called a Haversian system). Many of these units cemented together form the substance of compact bone.
Spongy bone is also composed of osteaoscytes and extracellular matrix, but the bone cells don't aggregate around central canals. Instead, the cells lie within trabeculae and get nrtruients from substances diffusing into the canaliculi that lead to the surface of these thin, bony plates.

Many times the spongy bone is surrounded by compact bone.

Answer 2

A compact bone is hard and dense, and forms the outer layer of long bones. Spongy bone is a "meshwork of small, bony plates" and make up the inside of a bone.

Answer 3

Hi. Density.