PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A rare condition caused by the toxins of the Clostridium botulinum bacteria
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A crippling, and potentially deadly, infectious disease caused by the poliovirus.
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An autoimmune disorder that causes weakness of the voluntary muscles.
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A bacterial disease that affects the muscles and nerves.
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Detailed explanation-1: -Myasthenia gravis (MG) is a chronic autoimmune disorder in which antibodies destroy the communication between nerves and muscle, resulting in weakness of the skeletal muscles. Myasthenia gravis affects the voluntary muscles of the body, especially those that control the eyes, mouth, throat and limbs.
Detailed explanation-2: -Myasthenia gravis is a disease that causes weakness in your voluntary muscles. These are the muscles that you control. For example, you may have weakness in the muscles for eye movement, facial expressions, and swallowing.
Detailed explanation-3: -In myasthenia gravis, your immune system produces antibodies that block or destroy many of your muscles’ receptor sites for a neurotransmitter called acetylcholine (as-uh-teel-KOH-leen). With fewer receptor sites available, your muscles receive fewer nerve signals, resulting in weakness.
Detailed explanation-4: -Myasthenia gravis (MG) is an autoimmune disease, meaning the body’s immune system mistakenly attacks its own parts. MG affects the communication between nerves and muscles (the neuromuscular junction). People with MG lose the ability to control muscles voluntarily.
Detailed explanation-5: -BACKGROUND: Myasthenia gravis (MG) is an autoimmune disease caused by the action of specific antibodies to the postsynaptic membrane of the neuromuscular junction, leading to impaired neuromuscular transmission. Patients with MG have an increased incidence of other autoimmune diseases.