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The main problem in achalasia is a failure of the a muscular ring where the esophagus and stomach come together (lower esophageal sphincter) to relax during swallowing. Another part of the disorder is a lack of nerve stimulation to the muscles of ...
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Achalasia is caused by degeneration of the nerve cells that normally signal the brain to relax the esophageal sphincter. The ultimate cause of this degeneration is unknown.
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A pinched nerve is a general term that describes an injury to a nerve or group of nerves. The damage may include compression, constriction or stretching.
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Nerve compression is the restriction in the space around a nerve that can occur due to several reasons. Functioning of the nerve is compromised.There are a variety of circumstances that cause nerve compression.
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A pinched nerve is caused by some anatomical structure putting pressure on a nerve and impairing its function. This problem may occur in many different areas of the body.
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Stingers occur when the shoulder and head go in opposite directions, the head is moved quickly to one side, or the area above the collarbone is hit.
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They are dependent on their hosts because they are unable to produce food or energy for themselves. Parasites are harmful to humans because they consume needed food, eat away body tissues and cells, and eliminate toxic waste, which makes people si...
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Endogenous biological determinants include genetic heritage and immunity that is passively acquired from maternal antibodies passed across the placenta or transmitted in maternal milk. Genetic heritage is determined largely by responses to biologi...
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