Assertion: muscle fiber | /r/MadeOf | myofibril
Facets:
Source sentences:
text: Each muscle fiber contains myofibrils, which are very long chains of sarcomeres, the contractile units of the cell.
text: 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 myocyte.
text: Each muscle fiber contains myofibrils, which are very long chains of sarcomeres, the contractile units of the cell.