PHYSIOLOGY
SYNAPTIC PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Spindle-shaped
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Striated
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Involuntary
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Authorhythmic
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Hormone Control
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Detailed explanation-1: -The correct answer is These fibres are cylindrical in shape. Smooth muscle is an involuntary non-striated muscle found in the walls of hollow organs, such as the intestines, uterus and stomach.
Detailed explanation-2: -Of the above answer choices, the one that is incorrect regarding smooth muscle is c. thin and thick filaments are aligned in sarcomeres like skeletal muscle. There are no striations formed by sarcomeres on smooth muscle as those only exist in cardiac and skeletal muscle.
Detailed explanation-3: -At a cellular level, smooth muscle can be described as an involuntary, non-striated muscle. Smooth muscle consists of thick and thin filaments that are not arranged into sarcomeres giving it a non-striated pattern.
Detailed explanation-4: -Smooth muscle tissue cells have four characteristics: they are involuntarily regulated, not striated, not branched, and have a single nucleus.