What is the compact part of the bone?

What is the compact part of the bone?

osteons
Compact bone consists of closely packed osteons or haversian systems. 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.

What is compact bone called?

compact bone, also called cortical bone, dense bone in which the bony matrix is solidly filled with organic ground substance and inorganic salts, leaving only tiny spaces (lacunae) that contain the osteocytes, or bone cells.

Which part of a bone is hard?

Compact bone
Compact bone is the solid, hard outside part of the bone. It looks like ivory and is extremely strong. Holes and channels run through it, carrying blood vessels and nerves.

Why is compact bone hard?

Compact bone is formed from a number of osteons, which are circular units of bone material and blood vessels. These units allow compact bone to remain hard and compact while still receiving nutrients from the body and disposing of waste through the same channels.

What is compact bone quizlet?

compact bone. Dense bone tissue composed of osteons, which resist pressure and shocks and protect the spongy tissue; it forms especially the diaphysis of the long bones.

Where is compact bone tissue found?

Compact bone is the denser, stronger of the two types of bone tissue ((Figure)). It can be found under the periosteum and in the diaphyses of long bones, where it provides support and protection.

What is the hardest part of a bone called?

Compact bone: the heaviest, hardest type of bone in the body. Lining cell: flat cells that make up and cover the outer layer of bone. Marrow: a soft tissue found inside bones. Osteoblast: cells make new bone.

What is compact tissue?

Compact Bone Tissue Compact bone (or cortical bone) forms the hard external layer of all bones and surrounds the medullary cavity, or bone marrow. It provides protection and strength to bones. Compact bone tissue consists of units called osteons or Haversian systems.

What is compact bone composed of quizlet?

Compact bone tissue is composed of repeating structural units called osteons, or haversian systems. Each osteon consists of concentric lamellae arranged around a central canal or haversian canal.

What is the structure of compact bone quizlet?

Cylindrical central cavity of the bone containing the bone marrow; this canal encloses lipid-rich yellow bone marrow. Lengthwise central canal of the osteon enclosing blood vessels and nerves.

What kind of bone is the compact bone?

Compact bone, also called cortical bone, is the hard, stiff, smooth, thin, white bone tissue that surrounds all bones in the human body. It is also called osseous tissue or cortical bone and it provides structure and support for an organism as part of its skeleton, in addition to being a location for the storage of minerals like calcium.

Are there pores and spaces in compact bone?

There are pores and spaces even in compact bone. Except at its edge, the osseous tissue of compact bone is arranged in cylindrical osteons. Each osteon is a compact cylinder of concentric lamellae. The only cells in an osteon are the osteocytes that are found on the edges of each lamella.

Which is the hard outer shell of the skeleton?

Compact bone, also known as cortical bone, is a denser material used to create much of the hard structure of the skeleton. As seen in the image below, compact bone forms the cortex, or hard outer shell of most bones in the body.

How is osseous tissue arranged in compact bone?

At the outer edges of compact bone, rather than being arranged in osteons, the osseous tissue is arranged in circumferential lamellae. These travel parallel to the outer edge of the bone and are usually only a few lamellae deep before the osteons start up.