Muscular System

Which of the following is not a function of the muscular system?

• Locomotion

• Maintaining body temperature

• Protecting from UV radiation

• Guarding entrances and exits

Which of the following is not a function of the muscular system?

• Supporting soft tissues

• Storing minerals

• Regulating blood flow

• Maintaining posture

Unique properties of muscle include all the following except

• Striability

• Extensibility

• Elasticity

• Contractility

Which ion is needed to open active sites on actin?

• Potassium

• Sodium

• Copper

• Calcium

The connective tissue surrounding a muscle is called

• Perimysium

• Exomysium

• Epimysium

• Endomysium

The smallest functional unit of muscle is the

• Sarcosome

• Sarcolemma

• Sarcoplasm

• Sarcomere

In the sliding filament theory

• The thin filament slides across the thick filament

• The thick filament slides across the thin filament

• The z line is sliding across the thick filament

• The I band slides across the z disk

Muscles are arranged in the body in ___________ pairs

• Agonistic

• Protagonistic

• Cooperating

• Antagonistic

The energy "currency" for muscle contraction is

• Glucose

• Glycogen

• ATP

• ADP

Muscle attached to bone is known as

• Cardiac muscle

• Skeletal muscle

• Smooth muscle

• Weak muscle