Question

What is myofibrils?????

Answer 1

Myofibrils are bundles of protein filaments that contain the contractile elements of the cardiomyocyte, that is, the machinery or motor that drives contraction and relaxation.

Answer 2

Answer:

A myofibril is a component of the animal skeletal muscle. Myofibrils are long filaments that run parallel to each other to form muscle (myo) fibers. The myofibrils, and resulting myofibers, may be several centimeters in length. The muscle fibers are single multinucleated cells that combine to form the muscle. Myofibrils are made up of repeating subunits called sarcomeres. These sarcomeres are responsible for muscle contractions.

Explanation: