Compact bone is denser and forms the external layer of bones, while spongy bone is less solid and usually forms the central mass of short, flat, and irregular bones.

What is the difference between disease and illness?

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What is the function of red bone marrow?

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Study Notes

Bones are rigid connective tissue that form the skeleton.
They provide support, movement, and protection to vital organs.
Bones are continually being broken down and reformed.
Compact bone is denser and forms the external layer of bones.
Spongy bone is less solid and usually forms the central mass of short, flat, and irregular bones.
Bones are classified by their shape, which determines their function.
They protect internal organs, produce blood cells, and store fat.
Vertebrae protect the spinal cord, cranial bones protect the brain, and the rib cage surrounds the heart and lungs.
Red bone marrow produces blood cells, and yellow bone marrow stores lipids.
Bones are a strong but lightweight dynamic tissue.