Muscle Quiz 1

The function of smooth muscle is to:

• Squeeze and move the internal organs

• To move the skeleton

• To help the heart beat

• To protect the body

Muscles are attached to bones by:

• tendons

• ligaments

• myofibrils

• actin

What type of muscle is under conscious control?

• Skeletal

• Cardiac

• Involuntary

• Smooth

After exercising for a long time without rest, the effectiveness of muscle contractions:

• Increases

• Decreases

• Does not change

• Heats up

A muscle that contracts under conscious control is what kind of muscle?

• Cardiac

• Involuntary

• Smooth

• Voluntary

A muscle that is attached to bone is called _______ muscle.

• Cardiac

• Skeletal

• Smooth

• Striated

What type of muscle is striated?

• Skeletal

• Cardiac

• Smooth

• Both Skeletal and Cardiac

A muscle that lines internal organs such as the organs of the digestive tract is a _______________ muscle.

• cardiac

• skeletal

• smooth

• striated

When a muscle contracts, it becomes ____________.

• Shorter

• Longer

• Heavier

• Skinnier

During anaerobic exercise, ____________ builds up and causes muscles to burn.

• Actin

• Myosin

• ATP

• Lactic Acid