What are the two types of bones compact and spongy?
Secondary bone is further classified as two types: trabecular bone (also called cancellous or spongy bone) and compact bone (also called dense or cortical bone).
What are the two main types of bone and where are they found?
Bone types
- Long bone – has a long, thin shape. Examples include the bones of the arms and legs (excluding the wrists, ankles and kneecaps).
- Short bone – has a squat, cubed shape.
- Flat bone – has a flattened, broad surface.
- Irregular bone – has a shape that does not conform to the above three types.
Which bones are compact bones?
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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.
What is compact bone?
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. In compact bone, the haversian systems are packed tightly together to form what appears to be a solid mass.
Where is compact bone found?
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.
What is structure of compact bone?
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.
Is compact bone homogeneous?
Compact bone is smooth, homogenous, and dense. Spongy bone has lots of needle like pieces called trabeculae and lots of spaces.
Is periosteum compact bone?
Compact bone is enclosed, except where it’s covered by articular cartilage, and is covered by the periosteum.
What are two characteristics of compact bone?
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.
