Muscle System Quiz

What causes movement in the body?

• Bones expanding

• Muscles contracting

• Blood flowing

• Organs growing

How do muscles move the body?

• They push and pull

• They only push

• They only pull

• They expand and shrink

What are muscles made of?

• Bones

• Organs

• Tissue, which is made of cells

• Blood vessels

What percentage of body weight is made up of muscle?

• 10 - 20%

• 25 - 35%

• 40 - 50%

• 60 - 70%

Approximately how many muscles are in the human body?

• 100

• 350

• 650

• 1000

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

• Support and posture

• Protecting organs

• Digesting food

• Controlling organ movements

How do muscles help with posture?

• By stretching the bones

• By providing a strong framework to keep bones in place

• By keeping the skin tight

• By increasing blood flow

How do muscles protect organs?

• By providing a cushion over bones

• By making the skin harder

• By stretching around the bones

• By reducing blood flow

Which of the following systems do muscles work with to help with movement?

• Circulatory system

• Skeletal system

• Digestive system

• Nervous system

Why is the heart considered a muscle?

• It helps digest food

• It transports blood around the body

• It protects bones

• It keeps organs warm