Examples of myofibril in the following topics:
- Each myocyte can contain many thousands of myofibrils.
- Each myofibril is surrounded by the
sarcoplasmic reticulum, which is closely associated with the transverse tubules.
- Myofibrils are composed of long myofilaments of actin, myosin, and other associated proteins.
- Myofibrils are composed of smaller structures called
- A muscle fiber is composed of many myofibrils, packaged into orderly units.
- However, when multiplied by the number of sarcomeres in a myofibril, myofibrils in a myocyte and myocytes in a muscle, the amount of force and movement generated is significant.
- Muscle cells,
or myocytes, contain myofibrils comprised of actin and myosin myofilaments
which slide past each other producing tension that changes the shape of the
- Voluntary refers to whether the
muscle is under conscious control, while striation refers to the presence of visible
banding within myocytes caused by the organization of myofibrils to
produce constant tension.