Multiple Choice
Which of the following organs lacks smooth muscle?
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4. Tissues & Histology
Introduction to Muscle Tissue
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Which of these is an autoimmune disease that affects muscle contraction?
A
Tetanus
B
Myasthenia Gravis
C
Muscular Dystrophy
D
Fibromyalgia
Verified step by step guidance1
Identify the key characteristic of the condition in question: an autoimmune disease affecting muscle contraction.
Review the list of conditions provided: Tetanus, Myasthenia Gravis, Muscular Dystrophy, and Fibromyalgia.
Understand the nature of each condition: Tetanus is caused by a bacterial toxin, Muscular Dystrophy is a genetic disorder, and Fibromyalgia is characterized by widespread musculoskeletal pain.
Recognize that Myasthenia Gravis is an autoimmune disorder where antibodies attack the neuromuscular junction, impairing muscle contraction.
Conclude that Myasthenia Gravis is the autoimmune disease affecting muscle contraction, as it matches the key characteristic identified in step 1.
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