mouth - takes in air and lets it go, nose - cleans and warms air, windpipe (trachea) - moves air in and out of the lungs, bronchioles - move air in and out of the air sacs, air sacs - move oxygen into the blood, air sacs - take carbon dioxide out of the blood, diaphragm - is a muscle that helps in breathing,

Match up lungs

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?