FAQ - Neoplasms, Bone Tissue
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When can intelligent people find a way to regenerate gum tissue and bone?


With the technology of dental implant, people are quite smart at treating teeth infection. How come we are so helpless at the boneloss caused by gum infection?
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its being done as we speak

new stem cell research has shown that soon we'll be able to replace teeth. we can grow them using stem cells from ourselves!

in germany they have already used stem cells to grow human jaws and bladders (fully functional when implanted on a living patient)

the breakthroughs of science..  (+ info)

What is the tissue or structure superior to the hyoid bone?


It is two words. Second letter of the first word is "a." Fifth and sixth letters of second word are "br"
I have a nurse friend who checked one if her books and said it was there. I do not know the name of the book though. And yes I am going after the laptop :)
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  (+ info)

What causes rotting bone and tissue around the left sinus and eye socket, complete loss of nasa septrum ?


Have thick yellow discharge with blood and nerve damage on left side of face with dumbness. Chronic headache, severe throat drainage.
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contact with lye or acid to those areas
burns to those areas
cancer
abscessed sinuses [bad infection]
staph infection--many start in the nose [staph aureus]
trauma to the area such as stab or blow to the face
use of the drug cocaine  (+ info)

a couple questions about the bone tissue please help?


i need to know where the bone tissue is found in the body, what is its function, what about the cells it contains help determine its function, and how does it work with other tissues to make up an organ or organ system? please help. any help would be greatly appreciated.
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The bone tissue is a mineralized connective tissue. Bone-forming cells called osteoblasts deposit a matrix of collagen, but they also release calcium, magnesium, and phosphate ions, which chemically combine and harden within the matrix into the mineral hydroxyapatite. The combination of hard mineral and flexible collagen makes bone harder than cartilage without being brittle. The microscopic structure of mammalian compact bone consists of repeating units called Haversian systems. Each system has concentric layers of mineralized matrix, called concentric lamellae, which are deposited around a central canal, also known as the Haversian canal, containing blood vessels and nerves that service the bone.

From Vanderbilt University:

Cells associated with bone

Osteoblasts, osteocytes, osteoclasts, and osteogenic cells are found in developing bone, regardless of the site of formation. With the scanning objective, examine the decalcified section of fetal head on slide A35 (H&E). Intramembranous ossification is underway and membranous bone is forming lateral and dorsal to the nasal chambers. Locate the osseous tissue (staining pale red) and note that it is called spongy bone or cancellous bone and is characterized by many spaces between the trabeculae. With the high dry and oil immersion objectives, study several trabeculae and the intervening connective tissue to identify the following cell types:

1. Osteoblasts. These are bone-forming cells, which are usually arranged in a single row on the surface of trabeculae of developing bone. Inactive osteoblasts are flattened or squamous in shape while active osteoblasts are cuboidal or pyramidal in shape. Study active osteoblasts under oil immersion and note their large, often eccentric nuclei, distinct nucleoli, and basophilic cytoplasm. The basophilia has been shown by electron microscopy to be due to numerous ribosomes, most of which are attached to membranes of the granular endoplasmic reticulum. An osteoblast has numerous processes from its cell body, which contact similar processes of adjacent cells, but these processes are not visible in the preparation. Osteoblasts secrete the organic components of the bone matrix (collagenous fibers and ground substance). The secretion is called osteoid (resembling bone) and can sometimes be seen as a pale line on the surface of trabeculae. Osteoid becomes bone when it is infiltrated with inorganic salts.

2. Osteocytes. These are bone cells, which function in maintaining bone. They represent osteoblasts, which have become entrapped in their own secretions. The cell bodies of osteocytes occupy lacunae and their cytoplasmic processes extend into small canals called canaliculi. The canaliculi will be studied later in the ground bone preparation. Osteocytes have dark nuclei and pale cytoplasm. The cells are often somewhat shrunken, but their normal configuration can be inferred from the shape of the lacunae, which they occupy.

3. Osteoclasts. Osteoclasts (bone breakers) are cells, which resorb bone. They are large multinucleated cells, which vary in size and in the number of nuclei they possess. The cytoplasm is foamy and varies from basophilic to acidophilic. The cells are often found in depressions of bone called Howship's lacunae. Osteoclasts arise by fusion of other cells, e.g. osteogenic cells, osteoblasts, or osteocytes. The surface of an osteoclast lying next to bone that is being resorbed has a brush border, which can be seen under oil immersion of the microscope. Osteoclasts appear to release lysosomal acid hydrolases, which alter the polymerization of the ground substances, resulting in the breakdown of bone. Parathyroid hormone increases the number and activity of osteoclasts and elevates the blood calcium level.

4. Osteogenic cells (osteoprogenitor cells). These are stem cells, which lie in the connective tissue between the trabeculae. The cytoplasm and nuclei are pale staining. These cells differentiate from mesenchymal cells and multiply by mitosis before becoming osteoblasts. Osteogenic cells, osteoblasts, and osteocytes are different functional stages of the same cell. The change from one of these cells to another is reversible. Such reversible changes are examples of cell modulation and differ from cell differentiation, a term applied to irreversible changes in structure and function.  (+ info)

What is the tough fibrous connective tissue covering of a bone?


I need your help. Mucho thanks. :)
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Cartilage

Hope this helped..!  (+ info)

what is the medical injection that works under pressure to kill the tissue and that break the bone?


the injection wroks under pressure, it kill the tissue, it breaks the bone
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Botox ???  (+ info)

Where in a human long bone would you find the connective tissue thats heavily laced with blood vessels?


A. Running through spongy bone B. Lining the marrow cavity C. In sheets over compact bone thnx!<3
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C. This layer is called the periosteum and is responsible for providing nutrients to the bone as well as repairing the bone when it gets damaged.  (+ info)

How does a bone spur develop when exposed bone tissue rubs against each other?


I dunno, but I got bone spurs in my jaw after surgery, not just once but twice. Extremely painful in the lower jaw, back where my molars used to be. First surgery, one appeared on the right side, and after the second surgery one appeared on the left side.
I dont know why I got them, I dont know what part of the surgery caused them to come out. I do know I pray I never get them again, that was awful!  (+ info)

What is the difference between healthy bone tissue and bone affected by osteoporosis?


Need help ASAP
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The bone with osteoporosis is porous, with holes where it has lost calcium, similar to the way a sponge has holes.  (+ info)

What happens to muscle and bone tissue when they are not used?


since muscle tissue needs a certain amount of movement as it heals, and will begin to atrophy (shrink) if not used.

Your muscles heal very differently than your bones. If you fracture a bone, as long as it is set and fixed in place properly, it will tend to heal so thoroughly that it will become stronger than it was before the fracture! Bone tissue heals with calcium and other minerals, components of bone, in a process that creates a bond that is as strong or stronger than the original bone structure.  (+ info)

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