How Muscles Move Bones

In the arm we have seen how the biceps flexes the elbow and the triceps straightens it by extending the arm. This action is called ___________.

• agonist

• antagonist

• antagonistic

• prime mover

__________ muscles you do not control.

• Voluntary

• Involuntary

When a muscle contracts, it .........

• pulls and moves the bone attached to it

• pulls the bones

• moves the bones

• pulls and moves the bones in our body

Our bones cannot move without the help of muscles.

• True

• False

• Maybe

Which set of muscles help to bend or straighten our arm?

• biceps and triceps

• biceps and quadriceps

• triceps and quadriceps

• triceps and soleus

Our bones can move when our muscles..........

• contract

• relax

• contract and relax

• contract and pulling

When we bend our arm, ..............

• the biceps and triceps contract

• the biceps contract and the triceps relax

• the biceps relax and the triceps contract

• the biceps and triceps relax

What is the primary function of skeletal muscles in the human body?

• To produce blood cells

• To move bones

• To store calcium

• To protect internal organs

Which type of muscle is responsible for moving bones?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Involuntary muscle

When a muscle contracts, what happens to the bone it is attached to?

• The bone is pushed away

• The bone is pulled closer

• The bone remains stationary

• The bone rotates