What is the difference between bone and spongy bone

The osteon consists of a central canal called the osteonic haversian canal, which is surrounded by concentric rings lamellae of matrix. Between the rings of matrix, the bone cells osteocytes are located in spaces called lacunae.

Small channels canaliculi radiate from the lacunae to the osteonic haversian canal to provide passageways through the hard matrix. In compact bone, the haversian systems are packed tightly together to form what appears to be a solid mass. The osteonic canals contain blood vessels that are parallel to the long axis of the bone. They are made of closely packed osteons. They are composed of minerals containing trabeculae. They function as a buffer system to the compact bone and support its function.

They are cylindrical shaped. They have a cuboidal structure. Compact bones have high calcium content. They have low calcium content. They contain a yellow bone marrow in the bone marrow cavity. Their bone marrows store fat. Their bone marrows produce red blood cells and white blood cells. They are found in long bone tissues such as in the arms and legs.

They are found mostly in short bones such as those in the wrist and ankles. They are designed to withstand heavy weight. They are not designed to buffer the shock produced from any movement. They do not transform into spongy bones. The action of osteoblasts deposits a new bone matrix between trabeculae and eventually transforms spongy bones to compact bones. What are the differences between these bone structures? Compact and spongy bones are considered the two basic structural bone types.

The best explanation of the difference between the two is that the spongy bones in terms of area can be found at the head part of long bones. It also fills up the bones of an irregular type.

Compact bones, on the other hand, can be found at the outer layer of the bone. It also forms the outer layer plus the shaft of the long type of bones. Compact bones are also known as cortical bones. Spongy bones are also known as cancellous bones. Compact and spongy bones are the two main types of osseous tissues. Compact bones are made up of osteons. Osteons are also called Haversian systems. These osteons make the structure of compact bones. These rod-like units form the outer layer of the compact bones at the long bone.

These osteons also contain Haversian canals. These canals contain and carry blood vessels, lymphatic vessels, and branches of the nerves. Spongy bones are made up trabeculae.