What is a way to protect your skeletal and muscular systems from injury?

a.
lift heavy objects quickly.

b.
avoid exercise.

c.
carry at least 20 lbs. in your backpack at all times.

d.
lift heavy objects with your knees bent.

Is it rare to have scoliosis and double jointed shoulders?

Blank doctors keep consistent records because this terminology is standardized.

Matching: 1. first used by europeans as a local anesthetic; now abused for its euphoric effects 5 marijuana 2. found in coffee beans, tea leaves, and cocoa beans 2 heroin 3. prescribed for pain involving serious injury or surgery 1 morphine 4. illegal derivative of morphine that is sold on the street as a white powder 6 caffeine 5. can evoke feelings of terror and panic 4 lsd 6. causes user to experience a conscious dreamlike state 3 cocaine