is nerve damage that can result from damage of blood vessels that feed those nerves. Diabetic neuropathy can be classified as peripheral‚ autonomic‚ proximal and focal. Each affect very different part of the body in various ways. Peripheral neuropathy‚ is the most common type‚ causing pain or loss of felling in the toes‚ feet‚ legs‚ hands‚ and arms. Autonomic neuropathy‚ causes changed in digestion‚ bowel and bladder function‚ sexual response‚ and perspiration. As well as affecting the nerves that
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Nervous Tissue 3. List the types of neuroglia and cite their functions. 4. Define neuron‚ describe its important structural components‚ and relate each to a functional role. 5. Differentiate between a nerve and a tract‚ and between a nucleus and a ganglion. 6. Explain the importance of the myelin sheath and describe how it is formed in the central and peripheral nervous systems. 7. Classify neurons structurally and functionally
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Krabbe disease is a disorder inherited from parents‚ which destroys the myelin coat of nerve cells throughout the nervous system and the process is called demyelination. Demyelination inhibits the transmission of nerve impulses and that hinders the communication of the brain and the body and that results in disability (Mayo Foundation for Medical Education and Research‚ 2016). Dr. Knud. H.Krabbe diagnosed this disorder in 1916 (Arizona Board of Regents‚ 2015). Krabbe disease is a body recessive disorder
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patient benefited greatly from a sympathetic nerve block. She was able walk and sensitivity of the foot was restored. The pain is rated 3/10-scale level with medications. There are no side effects‚ no aberrant behavior to the meds. The med provide good pain relief. She is currently taking Oxycodone‚ Norco and Gabapentin. The musculoskeletal exam revealed joint pain‚ swelling‚ muscle cramps‚ muscle weakness and stiffness. Treatment plan included Sympathetic nerve block for RDS. Follow-up is in 1 month.
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trend toward bilateral symmetry and cephalization * Invertebrate Nervous Organization * In simple animals‚ such as sponges‚ the most common observable response is closure of the osculum (central opening) * Hydras (cnidarians) have a nerve net that is composed of neurons * Planarians‚ (flatworms) have a ladderlike nervous system * In annelids (earthworm)‚ arthropods (crab)‚ and molluscs (squid) the nervous system shows further advances * Cephalization - concentration
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different parts of the body. It is thicker on the palms of our hands and feet‚ and thinner on our eyelids which have to be light or our eyes would always be closed. The dermis‚ or known as the true skin‚ is thick‚ sturdy‚ and contains lots of nerves‚ blood vessels‚ and sweat glands. It protects and repairs injured tissue. This layer holds more collagen‚ which comes from cells called fibroblasts and is one of the strongest proteins found in nature. It gives skin durability and resilience.
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from 4 microns (.004 mm) to 100 microns (.1 mm) in diameter. Their length varies from a fraction of an inch to several feet. Neurons are nerve cells that transmit nerve signals to and from the brain at up to 200 mph. The neuron consists of a cell body (or soma) with branching dendrites(signal receivers) and a projection called an axon‚ which conduct the nerve signal. At the other end of the axon‚ the axon terminals transmit the electro-chemical signal across a synapse (the gap between the axon terminal
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trying to understand the cellular and molecular mechanisms behind cancer cell invasion in the nerves. More specifically‚ Deborde’s research focuses on analyzing the vital role that Schwann cells play in perineural invasion‚ the process in which cancer cells invade the nerves. Deborde began the seminar by explaining how the nerves are part of the tumor microenvironment and how cancer cells can invade the nerves in the process of perineural invasion. Deborde described perineural invasion as a type of
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characterized by gradual degeneration of nerves‚ which starts in the hands and feet and results in numbness‚ muscle weakness and loss of function. Charcot-Marie-Tooth (CMT) disease typically occurs in 1 person per 2‚500. The disease is not fatal ‚ however ‚ the effects that it causes on the body is very detrimental ‚ especially to the individual ’s self-confidence. The disease involves damage to the covering myelin sheath around nerve fibers. In some‚ the disease causes destruction
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The other complex compartmentalized nervous system is found in arthropods (see the diagram). The arthropodan brain consists of three main regions: the protocerebrum‚deutocerebrum‚ and tritocerebrum. The anterior protocerebrum‚ which receives the nerves of the eyes and other organs‚ contains centres‚ or neuropils‚ such as the optic centres and bodies known as corpora pedunculata. The neuropils function as integrative systems for the anterior sense organs‚ especially the eyes‚ and in control of movement;
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