Muscle System - Year 8

What is the main function of skeletal muscles?

• Pump blood around the body

• Bring about movement

• Digest food

• Control breathing automatically

Which type of muscle works involuntarily and is found in internal organs like the intestines and bladder?

• Smooth muscle

• Skeletal muscle

• Cardiac muscle

• Voluntary muscle

Where is cardiac muscle found?

• In the arms and legs

• In the digestive system

• Only in the wall of the heart

• In all skeletal joints

Tags

NGSS.MS-LS1-3

What does it mean when a muscle works voluntarily?

• It works automatically

• It only works when you are asleep

• It can be consciously controlled

• It only works during exercise

What is one way muscles help our bodies besides movement?

• Maintaining posture

• Making bones stronger

• Producing red blood cells

• Absorbing nutrients