Myofibrils are
muscles that composed of filaments that are organized into thin and thick
myofilaments. They are constructed from proteins, which include actin, myosin, and
titin. Moreover, these long proteins of myofilaments create different muscles, such
as striated muscles that has transverse bands of filaments, which can be seen
in cardiac and skeletal muscles while the smooth muscle has irregular
arrangements of filaments.
