EVERYDAY SCIENCE

Detailed explanation-1: -Compact bone is a robust and heavy bony structure that forms the diaphysis of long bones, whereas spongy bone is a soft and smooth bony structure that forms the epiphysis of long bones.

Detailed explanation-2: -Bone is made up of compact tissue (the hard, outer layer) and cancellous tissue (the spongy, inner layer that contains red marrow).

Detailed explanation-3: -The two different types of osseous tissue are compact bone tissue (also called hard or cortical bone) tissue and spongy bone tissue (also called cancellous or trabecular bone).

Detailed explanation-4: -The two layers of compact bone and the interior spongy bone work together to protect the internal organs. If the outer layer of a cranial bone fractures, the brain is still protected by the intact inner layer.

Detailed explanation-5: -The outside of bones are hard tissues that provide support, but inside those bones are spongy tissues called marrow that produces blood cells. Even during childhood, the bones have softer areas toward the ends that produce more bone tissues to keep out skeleton growing right along with the rest of our bodies.