Muscular System and Function I

What is the purpose of skeletal muscle?

• To help with digestion

• To control movement, posture, and balance

• To move blood through the heart

• To move food through the digestive system

Which type of muscle is located in the heart?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Involuntary muscle

How does skeletal muscle move the bones?

• By releasing bursts of electricity

• By contracting and relaxing

• By tightening and relaxing in waves

• By moving the diaphragm

What connects skeletal muscle to the skeleton?

• Tendons

• Motor nerves

• Fibers

• Chambers

Which type of muscle helps with digestion?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Involuntary muscle

What happens when skeletal muscle tightens?

• It gets shorter and pulls on the bones

• It gets longer and lets the bones fall back into place

• It moves the diaphragm

• It helps with blood flow

What is the purpose of smooth muscle?

• To help with digestion

• To control movement, posture, and balance

• To move blood through the heart

• To move food through the digestive system

What can happen if a muscle stretches too far?

• It can tear

• It can cramp

• It can twitch

• It can weaken over time

Which type of muscle is voluntary?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Involuntary muscle

What is muscular dystrophy?

• A disease that causes muscles to grow very weak over time

• A muscle strain or pulled muscle

• A disease that weakens smooth muscle

• A disease that weakens cardiac muscle