Muscle structure and function

The sliding of protein filaments over each other to create movement is called

Which muscle fiber type is more aerobic?

What is G

Tendons are NOT

Fast twitch fibers are larger than slow twitch fibers

Skeletal muscle is made up of numerous cylinder-shaped cells called

The number of FT and ST fibers varies from one muscle to another

A muscle or group of muscles opposing an action is called the

skeletal muscles are

Most skeletal muscles contain both FT and ST fibers

Whether or not a motor unit activates upon the arrival of an impulse depends on the _________

Myosin is known as the thick filament

A muscle or group of muscle opposing a desired action

Muscle that acts as an agonist during bending of the elbow (flexion)

Boxing events predominantly use what type of muscle fibers?

Fast twitch fibers are larger than slow twitch fibers

Which of the following statements about skeletal muscle is false

Highly trained individuals further develop strength only by improving intramuscle coordination

Skeletal muscles are capable of rapid contraction and relaxation

The muscle surrounding the joint being moved and supporting it in the action are called

Type II muscle fibers are further divided into type IIa glycolytic and type IIb oxidative

The muscles surrounding the joint being moved supporting it in the action

The performance capacity of muscle is determined by which of the following nontrainable factors

Compared with slow twitch fibers, fast twitch fibers:

What is A

skeletal muscle activation is initiated through

Shot put is an event that predominantly uses _________ muscle fiber

A muscle or group of muscles opposing a desired action

The light region within each sarcomere is known as the

The myofibrils contain contractile units that are responsible for muscle contraction.

What is F

Muscle groups that steady joints closer to the body axis

The _____ heads are responsible for generating cross bridge formations

In strength training an individual's performance improvements occur through biological

Sensory neurons transfer messeges to the:

A marathon event predominantly uses what type of muscle fibers

Most skeletal muscle is attached to another skeletal muscle.

Each muscle fiber is surrounded by a connective tissue sheath called the

The contractile unit of a muscle is the

During extension of the elbow joint, biceps act as a