Table of Contents
- 1 What are the characteristics of compact bones?
- 2 What are two functions of compact bone?
- 3 Why do we need both compact and spongy bone?
- 4 Where is bone matrix located?
- 5 What are the two types of bone and what are their features?
- 6 What is the basic unit of compact bone?
- 7 What is the function of a compact bone?
- 8 What are the different types of compact bones?
What are the characteristics of compact bones?
Compact bone has a sturdy calcified matrix with very few spaces. This layer not only forms a protective shell around the spongy bone tissue, but it also gives our bones their rigidity, strength, and resistance.
What are two functions of compact bone?
The compact bone is the main structure in the body for support, protection, and movement. Due to the strong nature of compact bone, compared to spongy bone, it is the preferred tissue for strength. Spongy bone is used for more active functions of the bones, including blood cell production and ion exchange.
What are two characteristics of bone?
They are lightweight yet strong and hard, and serve multiple functions. Bone tissue (osseous tissue) is a hard tissue, a type of specialized connective tissue. It has a honeycomb-like matrix internally, which helps to give the bone rigidity. Bone tissue is made up of different types of bone cells.
What are the functions of the compact bone?
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.
Why do we need both compact and spongy bone?
They are the bone tissues in animals that provide shape and support to the body. Both types of bones contain osteoblasts and osteoclasts that are necessary for creating bones. Both compact and spongy bones contain proteins like collagens and osteoids, which mineralize to help in bone formation.
Where is bone matrix located?
The bone matrix is that part of the bone tissue and forms most of the mass of the bone. It is comprised of organic and inorganic substances. The organic component of the bone matrix includes the collagen and ground substance whereas the inorganic component is the inorganic bone salts, mainly the hydroxyapatite.
What is compact bone made up of?
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.
Where is the compact bone located?
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. The microscopic structural unit of compact bone is called an osteon, or Haversian system.
What are the two types of bone and what are their features?
Compact (cortical) bone: A hard outer layer that is dense, strong, and durable. It makes up around 80 percent of adult bone mass. 2. Cancellous (trabecular or spongy) bone: This consists of a network of trabeculae or rod-like structures.
What is the basic unit of compact bone?
osteon
The diagram above shows a transverse view of an osteon (Haversian system) – the basic unit of compact bone. The diagram above shows a longitudinal view of an osteon. Some, mostly older, compact bone is remodelled to form these Haversian systems (or osteons).
What are the similarities between spongy and compact bone?
Compact bone and spongy bones are the two types of bones in animals. Both compact and spongy bones are made up of osseous tissue, which is a type of connective tissue that makes the bone. Both compact and spongy bones are involved in the movement of the body. Both compact bone and spongy bones contain calcium.
What are the differences between compact bone and spongy bone?
Compact and spongy bone are two types of bones found in the bone tissue. The main difference between compact and spongy bone is that compact bone is the hard outer layers of the bone whereas spongy is the more porous, inner layers of the bone.
What is the function of a compact bone?
The function of compact bone is to help to keep the levels of these minerals at constant within the blood. The arteries and veins that run through the Haversian canals provide a means to transport the minerals to and from the compact bone. The minerals are deposited for storage within the lamellae when blood levels are high.
What are the different types of compact bones?
There are five main types of compact bones: long, short, flat, irregular, and sesamoid. These types of bones have their own function in the skeletal system depending on where they are located. A diagram of the anatomy of a bone, showing the compact bone.
What type of bone consist of a compact bone?
Both types are found in most bones. Compact bone forms a shell around cancellous bone and is the primary component of the long bones of the arm and leg and other bones, where its greater strength and rigidity are needed. Mature compact bone is lamellar, or layered, in structure.