GENERAL HISTOLOGY

Detailed explanation-1: -There are two types of bone tissue: cortical and cancellous bone. Cortical bone is compact bone, while cancellous bone is trabecular and spongy bone. Cortical bone forms the extremely hard exterior while cancellous bone fills the interior.

Detailed explanation-2: -Compact bone, also called cortical bone, surrounds spongy bone and makes up the other 80% of the bone in a human skeleton. It is smooth, hard and heavy compared to spongy bone and it is also white in appearance, in contrast to spongy bone which has a pink color.

Detailed explanation-3: -If you look at compact bone tissue with naked eye, it look very dense: you cannot see any cavities in it. In contrast to compact bone tissue, spongy (cancellous) bone consists of an irregular latticework of thin blades of bone called trabeculae.

Detailed explanation-4: -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.