Any part of the body depending on what type of dance they are doing. Ballet it's the toes, ligaments and tears in the muscles. Backs can go out and falls can occur causes fractured hip bones. Since dancing is a great form of exercise there isn't much else one can do, but be very careful. That old saying "break a leg" isn't meant for dancers.
The most common dance injuries are ankles and leg injuries
The most common wrestling injuries in this sport are neck injuries and back injuries and shoulder injuries and calf injuries and groin injuries and foot injuries especially.
The most common sports injuries are Achilles injuries, groin injuries, hamstring injuries, sprained ankles, wrist injuries, shoulder tendon inflammation and a tennis elbow.
Baseball injuries
Some of the most common in injuries in science labs are cuts, from broken glasses, burns from chemicals and eye injuries
Clenched fist injuries are most common over the metacarpo phalangeal joint
knee injuries
whats the common physiological and psychological responses common to most sports injuries
knee
Manual handling injuries from lifting patients. Mostly Back injuries.
broken bones
i think the heel