location of spongy and compact bone in a flat bone

Spongy bone reduces the density of bone and allows the ends of long bones to compress as the result of stresses applied to the bone. The red bone marrow of the femur and the interior of other large bones, such as the ileum, forms blood cells. Blood vessels within this tissue deliver nutrients to osteocytes and remove waste. Red bone marrow is found between the trabuculae. Instead, it consists of trabeculae, which are lamellae that are arranged as rods or plates. Spongy bone tissue does not contain osteons that constitute compact bone tissue. Whereas compact bone tissue forms the outer layer of all bones, spongy bone or cancellous bone forms the inner layer of all bones. Spongy tissue is found on the interior of the bone, and compact bone tissue is found on the exterior.Haversian canals contain blood vessels and nerve fibers.Haversian canals contain blood vessels only.Compact bone tissue is made of cylindrical osteons that are aligned such that they travel the length of the bone.Which of the following statements about bone tissue is false? (credit: modification of work by NCI, NIH) The small dark ovals in the osteon represent the living osteocytes. The inner layer of bones consists of spongy bone tissue. Art Connection Compact bone tissue consists of osteons that are aligned parallel to the long axis of the bone, and the Haversian canal that contains the boneâs blood vessels and nerve fibers. Therefore, compact bone tissue is prominent in areas of bone at which stresses are applied in only a few directions. Osteons in compact bone tissue are aligned in the same direction along lines of stress and help the bone resist bending or fracturing. The Haversian canal (osteonic canal) contains the boneâs blood vessels and nerve fibers ( Figure).

Each osteon consists of lamellae, which are layers of compact matrix that surround a central canal called the Haversian canal.

They are aligned parallel to the long axis of the bone. Osteons are cylindrical structures that contain a mineral matrix and living osteocytes connected by canaliculi, which transport blood. Compact bone tissue consists of units called osteons or Haversian systems. It provides protection and strength to bones. Compact Bone TissueĬompact bone (or cortical bone) forms the hard external layer of all bones and surrounds the medullary cavity, or bone marrow. There are two types of bone tissue: compact and spongy. Osteocytes, the living cells of bone tissue, form the mineral matrix of bones. Bones are considered organs because they contain various types of tissue, such as blood, connective tissue, nerves, and bone tissue.

Location of spongy and compact bone in a flat bone