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Types of Muscles

Which part of...

Question

Which part of the myofibril is deemed to be the functional unit of contraction?

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Solution

sarcomere
A sarcomere is a muscle fiber's basic contractile unit. Actin and myosin, the active components that cause muscle contraction, are found in each sarcomere.
The sarcomere is made up of half of each adjacent I-band and A-band.
The functional unit of myofibril is the sarcomere.

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