are osteocytes found in spongy bone?
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Like compact bone, spongy bone, also known as cancellous bone, contains osteocytes housed in lacunae, but they are not arranged in concentric circles. Instead, the lacunae and osteocytes are found in a lattice-like network of matrix spikes called trabeculae (singular = trabecula) (Figure 7).
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Bone (osseous) tissue is the structural and supportive connective tissue of the body that forms the rigid part of the bones that make up the skeleton. Overall, the bones of the body are an organ made up of bone tissue, bone marrow, blood vessels, epithelium, and nerves.
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Trabecular bone tissue is a hierarchical, spongy, and porous material composed of hard and soft tissue components which can be found at the epiphyses and metaphyses of long bones and in the vertebral bodies (Fig.
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Cancellous bone maintains an intricate balance of bone cells, marrow and other tissues vital for bone formation. It is as hard as cortical bone, but it is formed in such a way as to appear spongy or mesh-like.
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Answer and Explanation: Osteocytes are the fully matured form of bone cells. Bone cells begin their lives as undifferentiated osteogenic cells.
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Periosteum and endosteum contain cells (osteoblasts, osteoclasts, and osteoprogenitor cells) required for bone development and remodeling of the bone. Understanding the histology of the endosteum and periosteum will help to decode the pathological conditions of bone.
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Osteoblasts synthesize and secrete a collagen matrix and calcium salts. When the area surrounding an osteoblast calcifies, the osteoblast becomes trapped and transforms into an osteocyte, the most common and mature type of bone cell.
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Compact Bone Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae. Small channels (canaliculi) radiate from the lacunae to the osteonic (haversian) canal to provide passageways through the hard matrix.
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On the basis of physical appearance, bone tissue are usually white and when seen under microscope, they are usually stained. On the other hand, muscle tissue appear to be reddish and could be fibrous or just smooth. Bone tissue are from osteocytes while muscle tissue are aggregated muscle fibers.
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The bone is made up of compact bone, spongy bone, and bone marrow. Compact bone makes up the outer layer of the bone. Spongy bone is found mostly at the ends of bones and contains red marrow. Bone marrow is found in the center of most bones and has many blood vessels.
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Bones are organs; although they consist primarily of osseous tissue, bones have a vast supply of nervous tissue in their nerves, fibrous tissue lining their cavities, and muscle and epithelial tissue in their blood vessels.
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These spaces are called lacunae, and they house bone-producing cells, called osteocytes, which are united through a network of canals, called canaliculi. The canaliculi supply nutrients via blood vessels, remove cellular wastes, and provide a means of communication between osteocytes.
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Compact bone tissue consists of units called osteons or Haversian systems. Osteons are cylindrical structures that contain a mineral matrix and living osteocytes connected by canaliculi, which transport blood. They are aligned parallel to the long axis of the bone.
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Facts about platelets Platelets are made in your bone marrow along with your white and red blood cells. Your bone marrow is the spongy center inside your bones. Another name for platelets is thrombocytes. Healthcare providers usually call a clot a thrombus.
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The osteoclasts remove bone by dissolving the mineral and breaking down the matrix in a process that is called bone resorption. The osteoclasts come from the same precursor cells in the bone marrow that produce white blood cells.
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Chondrocytes, or chondrocytes in lacunae, are cells found in cartilage connective tissue. They are the only cells located in cartilage.
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Compact bone, also called cortical bone, dense bone in which the bony matrix is solidly filled with organic ground substance and inorganic salts, leaving only tiny spaces (lacunae) that contain the osteocytes, or bone cells. ... Both types are found in most bones.