MUSCLE NERVE CARTILAGE BONE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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fascicle, muscle fiber, myofibril, sarcomere, myofilament
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muscle fiber, fascicle, sarcomere, myofibril, myofilament
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sarcomere, muscle fiber, fascicle, myofibril, myofilament
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fascicle, muscle fiber, myofilament, myofibril, sarcomer
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Detailed explanation-1: -And the muscle is covered by the perimysium, the fascicle is covered by the epimysium, the myofibrils are enclosed by the endomysium and finally the myofilament are enclosed by the sarcolemma .
Detailed explanation-2: -If we go from outside to inside, the correct muscle order would be epimysium, perimysium, fascicle, endomysium, muscle fibers, sarcolemma, myofibrils, and sarcomeres.
Detailed explanation-3: -In conclusion, the correct order of muscle structures is muscle, fascicles, fibers, myofibrils, and sarcomeres, from largest to smallest.
Detailed explanation-4: -Molecular level-actin and myosin. Microscopic level-sarcomere and myofibrils. Cell level-myoblasts and myofibers. Tissue level-neuromuscular junctions and fascicles. Organ level-major skeletal muscles of the body.
Detailed explanation-5: -Depolarisation and calcium ion release. Actin and myosin cross-bridge formation. Sliding mechanism of actin and myosin filaments. Sarcomere shortening (muscle contraction)