Our Body Systems Crossword Puzzle

QUESTIONS LIST: germs : long nails trap dirt and _ , digestion : when food changes inside our body into simple substance, straight : when we sit, stand and walk we should always hold our heads up and keep our backs:, expired : we must not consume _ food items, relaxes : when one muscle contracts, its partner muscle:, small intestine : the digestion of food is completed here, muscles : thick and stretchy bands that cover our skeleton, skull : gives our head its shape and protects our brain, chew : to help our digestive system to do its work well we can _ our food properly, stomach : in which organ the food is crushed and mixed with digestives juices?, gullet : a tube that it is part of the digestive system, joint : bones are hard and cannot bend. two bones meet at a:, rib cage : protects our heart and lungs.