PHYSIOLOGY
MICROSCOPIC MUSCLE ANATOMY
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Question
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Organelle of the muscle fiber.
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Fascicle
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Thick filament
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Thin filament
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Myofibril
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Explanation:
Detailed explanation-1: -A myofibril (also known as a muscle fibril or sarcostyle) is a basic rod-like organelle of a muscle cell. Skeletal muscles are composed of long, tubular cells known as muscle fibers, and these cells contain many chains of myofibrils. Each myofibril has a diameter of 1–2 micrometres.
Detailed explanation-2: -Each muscle fiber contains between 1000 and 2000 long, cylindrical organelles called myofibrils arranged in parallel to each other. Myofibrils are made of protein fibers and are specialized for contraction.
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