Relaxation of a skeletal muscle usually involves the Golgi tendon proprioceptors.
Skeletal
Myofibrils
muscle fiber
true
Sarcoplasm
sarcomeres
The smallest functional unit of a muscle fiber is the sarcomere. Sarcomeres are composed of actin and myosin filaments arranged in a repeating pattern, allowing for muscle contraction and relaxation to occur. They are responsible for the striated appearance of skeletal muscle under a microscope.
muscle fiber, myofibril, myofilaments, sarcomere
they are connected with the rope in the body
motor unitUnit
sarcomere
muscle spindles