What is the name of the THICK myofilament?

This consists of one neuron and the skeletal muscle fibers it stimulates

Long threadlike extension of the neuron

Neurotransmitter that stimulates skeletal muscle fibers

What is the distance between two Z-Discs called?

Complex organelle composed of bundles of myofilaments

What is the fine transparent tubular sheath which envelops the fibers of skeletal muscles?

What is the gap between the motor neuron and the muscle fiber?

What is the very important muscle fiber organelle that is made of specialized smooth endoplasmic reticulum