Muscular System

Front

What is the functional contractile unit within muscle fiber?

Back

The sarcomere.

Front

Which of the following is NOT a type of muscle? Rough, Smooth, Cardiac, Skeletal

Back

Rough.

Front

What are the 3 types of muscle tissue?

Back

Smooth Muscle, Cardiac Muscle, & Skeletal Muscle.

Front

What type of muscle is involuntary and moves on its own?

Back

Heart.

Front

What are skeletal muscles responsible for?

Back

Movement of the body.

Front

What is the primary function of smooth muscle?

Back

Involuntary movements in internal organs.

Front

What type of muscle is responsible for pumping blood?

Back

Cardiac muscle.

Front

What is the role of the sarcoplasmic reticulum in muscle fibers?

Back

It stores calcium ions necessary for muscle contraction.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles are controlled consciously, while involuntary muscles are not.

Front

What is the main characteristic of cardiac muscle?

Back

It is striated and involuntary.