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Under the microscope dense, compact bone shows a definite and a characteristic pattern of arrangement. The ground substance of bone is arranged in concentrated layers (lamellae) round the small canals which run parallel to the long axis (shaft) of the bone. These canals, called Haversian canals, are interconnected with one another via Volkmann's canals and contain a blood vessel, a nerve and a lymph vessel. Each Haversian canal is surrounded by concentric layers of bone matrix (called lamallae) and concentric rings of bone forming cells (osteoblasts). Bone cells remain alive and once they have completely surrounded by the hard bone matrix, they are called osteocytes. The osteocytes are embedded in fluid-filled cavities within the concentric lamellae. These cavities are known as lacunae and occur at regular intervals in these concentric layers of bone tissue. The lacunae are connected to one another and to the Haversian canals by a system of interconnecting canals known as canaliculi. Each Haversian canal, its concentric lamellae, lacunae with osteocytes and canaliculi forms a long cylinder and is called a Haversian system. Separate Haversian systems are joined to each other by means of interstitial lamellae.
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∙ 10y ago
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Describe bone structure?
The human bone structure is called a skeleton.
Compare compact and spongy bone in macroscopic appearance structure and relative location?
Compact Bone in macroscopic appearance looks solid and dense. Spongy bone in macroscopic appearance looks poorly organized. compact bone in microscopic structure is riddled with passage ways that serve as conduits for nerves, blood vessels and lymphatic vessels. Spongy bone is microscopic structure; the trabaculae in spongy bone align precisely along lines of stress and help the bone resist stress as much as possible. Location of compact bone in the outer layer of short, flat and irregular bones and also in the diaphysis of long bones. Spongy bone location; in the inside of short, flat and irregular bones and also in the epihyses of long bones.
Describe the structure of the femur?
A typical long bone such as the femur contains spongy bone and compact bone. Within compact bone are haversian canals, which contain blood vessels.
Do flat bones consist of compact bone sandwiched between spongy bone?
The compact bone surrounds the spongy bone and provides structure for the body.
How does the structure of compact bone follow its function?
The compact bone is also known as the strong bone due to its makeup. Compact bone is very dense with a high mass, making it better suited to carry weight and stay safe from damage.
What has the author R Bruce Martin written?
R. Bruce Martin has written: 'Structure, function, and adaptation of compact bone' -- subject(s): Physiology, Compact bone, Bone and Bones
What is the functional unit of bone?
The osteon is the structural unit of compact bone. Haversian system is a microscopic, structural unit of compact bone also called the osteon. The osteons are arranged in multiple layers or rings called concentric lamella.
What part of the bone is hard and dense?
compact bone. yah buddy!
Describe the two layers found in most bones?
Compact bone & Cartukage
What is a description of the microscope stucture of compact bone?
Compact bone is dense and does not contain many spaces (unlike spongy bone). It has a concentric-ring structure. Compact bone consists of osteons which contains blood vessels and Volkmann's canals (which also hold blood vessels and nerves but run perpendicular to the osteons).
Describe the composition of bone?
The composition of a bone depends on: - a spongy bone - the narrow - the compact - the yellow sponge(where all the fat is stored) - the ostoblasts cell -and the bone marrow
Does spongy bone or compact bone provide most of the strength to the bone?
Compact bone.
