The sarcoplasmic reticulum are the membranous interconnecting channels and sacs that surround and run parallel to the myofibrils.
The sarcoplasm is found within muscle cells, specifically in the cytoplasm. It surrounds the myofibrils and other organelles within the muscle cell and plays a crucial role in various cellular processes related to muscle contraction and metabolism.
Myofibrils
myofibrils
The smallest unit among myofibrils, myofilaments, muscle fibers, and fascicles is the myofilament. Myofilaments are the microscopic protein filaments (actin and myosin) within myofibrils that are responsible for muscle contraction. Myofibrils are bundles of myofilaments, muscle fibers are composed of many myofibrils, and fascicles are groups of muscle fibers.
myofibrils
myofibrils
actin and myosin
myofibrils
myofibrils
True.
The sarcoplasm
Myofibrils are thread-like structures