Muscular System - IGCSE 1.4

What type of muscle is found only in the heart?

• Cardiac muscle

• Skeletal muscle

• Striated muscle

• Smooth muscle

Which type of muscle is under conscious control?

• Cardiac muscle

• Smooth muscle

• Involuntary muscle

• Skeletal muscle

What is the primary function of the muscular system?

• Transporting nutrients

• Regulating temperature

• Producing movement

• Producing energy

Which type of muscle fibre contracts slowly and is resistant to fatigue?

• Type IIa

• Type IIx

• Type I

• Type III

What color are type I muscle fibres?

• White

• Blue

• Pink

• Red

Which muscle fibre type is best suited for endurance athletes?

• Type III

• Type IIa

• Type I

• Type IIx

What is the speed of contraction for type IIx muscle fibres?

• Very fast

• Slow

• Fast

• Medium

Which type of muscle is found in internal organs?

• Striated muscle

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

What is the primary characteristic of type IIa muscle fibres?

• Low force production

• Very fast contraction

• High resistance to fatigue

• Medium force production

Which muscle fibre type would a sprinter need for quick bursts of speed?

• Type III

• Type I

• Type IIa

• Type IIx