What is a compact bone definition?

What is a compact bone definition?

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. Mature compact bone is lamellar, or layered, in structure.

What is compact bone and its function?

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 made 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.

Which term best describes compact bone?

What term best describes compact bone? Rigid. What fills the hollow of most bones? Bone marrow. Only $35.99/year.

Is compact bone homogeneous?

Compact bone: is dense & looks smooth & homogeneous.

What is compact and spongy bone?

Compact bones are the present in the outer layer of long bones, while spongy bones are present in the middle of the long bones. The main difference between spongy and compact bones is their structure and function.

What are the 4 main parts of compact bone?

The osteon is the functional unit of compact bone, and osteons contain lamellae, central canal, lacunae, and canaliculi.

Which of the following is the definition of compact bone quizlet?

What is compact bone? Bone tissue that contains few spaces between osteons; forms the external portion of all bones and the bulk of the diaphysis (shaft) of long bones; is found immediately deep to the periosteum and external to spongy bone.

What compact bone is made of?

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.

How is compact bone formed?

The increase in diameter is called appositional growth. Osteoblasts in the periosteum form compact bone around the external bone surface. At the same time, osteoclasts in the endosteum break down bone on the internal bone surface, around the medullary cavity.

Is the compact bone avascular?

Is bone avascular and aneural? No. It has a rich blood supply and a rich nerve supply. These are holes where blood vessels (accompanied by lymph vessels and nerves) enter the bone.

Does compact bone have bone marrow?

The bone is made up of compact bone, spongy bone, and bone marrow. Compact bone makes up the outer layer of the bone. Spongy bone is found mostly at the ends of bones and contains red marrow. Bone marrow is found in the center of most bones and has many blood vessels.