Exam 6: The Muscular System

Which muscle is involved in shrugging your shoulders?

A(n)____________________ contraction occurs when a muscle shortens as it moves a load.

Which molecule causes actin and myosin to detach?

The first metabolic pathway by which ATP is made in an active muscle cell is ____.

Which muscle lifts and braces the shoulder?

The constant state of contraction in a resting muscle is known as muscle ____________________.

Which type of muscle makes up the majority of the body's muscle tissue?

Which characteristic is NOT associated with red muscle fibers?

Myotonic muscular dystrophy ____.

Skeletal muscle fibers are composed of ____.

Which system relies on the contraction of smooth muscle to propel luminal contents?

The protein ____________________ produces power strokes that lead to sarcomere shortening.

Botox used in cosmetic medicine blocks ____.

Together, all muscle types make up what percentage of the body?

The basic unit of contraction in a skeletal muscle is ____.

The benefits of aerobic exercise include all of the following EXCEPT an ____.

A group of muscles that perform similar movements are known as ____________________ muscles.

Which muscle straightens the forearm?

Rigor mortis occurs when ____.

Summarize the major steps involved in producing a muscle contraction beginning with motor neuron activity and ending with sarcomere shortening.