____________ are surrounded by perimysium and are made up of individual muscle cells.

Another name for the cell membrane of a muscle fibre is the plasmalemma.

The ends of a sarcomere are called a __________.

Myosin, a protein filament, is considered the __________ filament.

This covers myosin binding sites at rest, before calcium can help to move it.

Titin is a myofilament that helps to prevent overstretching.

Which main neurotransmitter helps to pass an electrical signal from a neuron to a muscle fibre?

T-tubules help to bring electrical signals deep into the muscle fibres.

In muscle fibres, calcium is stored (and released from) the ____________ _____________ .