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40_Animal tissues
40_Animal tissues

... Simple squamous epithelium ...
OLFACTORY AND OPTIC NERVE
OLFACTORY AND OPTIC NERVE

... innervate skeletal muscles of eye and tongue  Special visceral efferent fibers (SVE): transmit motor impulses from the brain to skeletal muscles derived from pharyngeal (gill) arches of embryo. These include the muscles of mastication, facial expression and swallowing  General visceral efferent fi ...
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... represent an alternative approach to BMCs. In comparison with autologous BMCs, allogeneic MSCs have various advantages that make them an attractive vehicle for cardiovascular cell therapy. MSCs lack major histocompatability complex II cell surface antigens and costimulatory molecules, which make the ...
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Animal Tissues and Organs
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... digestive and respiratory tracts form a mucous membrane that secretes a slimy solution called mucus that lubricates the surface and keeps it moist. • The free epithelial surfaces of some mucous membranes have beating cilia that move the film of mucus along the surface. • In the respiratory tubes, th ...
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VASER Clinical Series Principles of Ultrasound

... The use of VASER ultrasonic energy for body contouring has several benefits, including tissue specificity, limited blood loss and patient discomfort, smooth skin retraction, and preservation of fat cell viability. Since individual fat cells remain intact, fat collected during the VASER Lipo procedur ...
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... The trigeminal nerve is the largest of the cranial nerves. It originates from the brainstem at the midlateral surface of the pons, near its upper border, by a smaller motor and a larger sensory root. The afferent fibers transmit information from the face, oral and nasal cavities, and most of the sca ...
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Ectodermal Derivtives2008-11-18 02:441.6 MB
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... the vertebrae develop  The part that lies between the vertebral bodies persists as the nucleus pulposus of each intervertebral disc  Remnants of notochordal tissue give rise to tumors called Chordomas ...
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... manufacture collagen. You can see here in this electron micrograph the fibroblasts that are actively synthesising collagen. Look closely and you will see long parallel collagen fibrils that have been synthesised. Look at the cell in the middle, note the nucleus and the threads of collagen being extr ...
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Janna Arnold

... cell-like state by being forced to express genes and factors important for maintaining the defining properties of embryonic stem cells (“Stem”). Genetically reprogramming the Adult Stem Cells could be a lengthy process; however, it is very promising for treatments because it provides a better way to ...
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Nerve guidance conduit

A nerve guidance conduit (also referred to as an artificial nerve conduit or artificial nerve graft, as opposed to an autograft) is an artificial means of guiding axonal regrowth to facilitate nerve regeneration and is one of several clinical treatments for nerve injuries. When direct suturing of the two stumps of a severed nerve cannot be accomplished without tension, the standard clinical treatment for peripheral nerve injuries is autologous nerve grafting. Due to the limited availability of donor tissue and functional recovery in autologous nerve grafting, neural tissue engineering research has focused on the development of bioartificial nerve guidance conduits as an alternative treatment, especially for large defects. Similar techniques are also being explored for nerve repair in the spinal cord but nerve regeneration in the central nervous system poses a greater challenge because its axons do not regenerate appreciably in their native environment.The creation of artificial conduits is also known as entubulation because the nerve ends and intervening gap are enclosed within a tube composed of biological or synthetic materials. Whether the conduit is in the form of a biologic tube, synthetic tube or tissue-engineered conduit, it should facilitate neurotropic and neurotrophic communication between the proximal and distal ends of the nerve gap, block external inhibitory factors, and provide a physical guidance for axonal regrowth. The most basic objective of a nerve guidance conduit is to combine physical, chemical, and biological cues under conditions that will foster tissue formation.Materials that have been used to make biologic tubes include blood vessels and skeletal muscles, while nonabsorbable and bioabsorbable synthetic tubes have been made from silicone and polyglycolide respectively. Tissue-engineered nerve guidance conduits are a combination of many elements: scaffold structure, scaffold material, cellular therapies, neurotrophic factors and biomimetic materials. The choice of which physical, chemical and biological cues to use is based on the properties of the nerve environment, which is critical in creating the most desirable environment for axon regeneration. The factors that control material selection include biocompatibility, biodegradability, mechanical integrity, controllability during nerve growth, implantation and sterilization.
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