Muscle system Quiz

The contracting unit of a muscle cell is called ______?

The thick myofilament of a sarcomer is called_______?

The sarcoplasmic reticulm releases this ion, ______, which binds to troponin causing it to move so that myosin binding sites can be exposed.

Number three is showing the thin myofilament called?

What is the connective tissue that surrounds / ensheathes the entire muscle?

Number 5 is called a _________, know as a discrete bundle of muscle cells?

Considering there are only two organ types involved in the muscle system, which is 8?

A muscle cell is called ____?

Which are the correct four functions of the muscle system?

This structure innervates (activates) muscle fibers.