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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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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.
Compare compact and spongy bone in macroscopic appearance structure and relative location?
Compact bone is dense and solid, while spongy bone is porous and contains trabeculae that give it a spongy appearance. Compact bone is typically found on the outer layer of bones, providing strength and support, while spongy bone is located deeper within bones and helps with shock absorption and bone marrow production.
Do flat bones consist of compact bone sandwiched between spongy bone?
The compact bone surrounds the spongy bone and provides structure for the body.
What is the strong hard layer under periosteum?
The strong hard layer beneath the periosteum is called the compact bone. It is dense and provides strength and support to the bone structure.
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
Describe the two layers found in most bones?
Compact bone & Cartukage
What part of the bone is hard and dense?
compact bone. yah buddy!
Describe bone structure?
Bones are composed of collagen fibers and minerals like calcium and phosphorus, giving them strength and flexibility. They are made up of compact bone on the outside and spongy bone on the inside, with a central cavity containing bone marrow for blood cell production. Bones are connected by ligaments at joints and are constantly being remodeled by cells called osteoblasts and osteoclasts.
Does the stenum has two layers of compact bone with a layer of spongy bone sandwiched in between?
Yes, the sternum contains two layers of compact bone with a layer of spongy bone sandwiched in between. This structure provides strength and support to the chest area, protecting vital organs such as the heart and lungs.
Does bone remodeling affect both compact bone tissue and spongy bone tissue?
Yes, bone remodeling affects both compact and spongy bone tissues. It involves the removal of old bone by osteoclasts and the formation of new bone by osteoblasts, leading to changes in bone structure and density. The process helps maintain bone strength and repair microdamage.
Site of compact bone in adult?
In adults, compact bone is found on the exterior of bones, forming a dense outer layer. It provides strength, protection, and support to the bone structure. Compact bone is primarily composed of osteons, which are cylindrical structures containing concentric layers of bone tissue.
