Muscle Vocabulary

Surrounds individual fascicles and seperates muscle into small compartments.

Surround individual muscle fibers

Cell membrane of a muscle fiber (cell)

Cytoplasm of a muscle fiber (cell)

Thread of protein inside the sarcoplasm

Thick protein filament inside a myofibril

Thin protein filament inside a myofibril

Actin filaments attached to Z-lines

Protein to which actin bonds

Region where myosin overlaps actin

Unit of muscle from z-line to z-line

Nerve cell that connects to muscle fiber

Connection between motor neuron and muscle fiber

Chemicals that go from neuron to muscle fibers

Consists of motor neuron and a muscle fiber