Alveoli means strings

Stretched means become smaller

Choke means able to breath because something blocked air passage

Trachea is a tube leading into the chest cavity

Flexible means stretched easily

Dental plaque is one of main parts of a tooth

In the final stages of decay , it is usually difficult to locate the hurting tooth

Dental carries is another name for tooth decay

Children usually suffer more tooth decay than do adults

Is specialized muscle unique to the heart , consisting of branching , elongated fibers possessing the ability to contract and relax continuously

Has special cells that make fresh blood for the body

Red bone marrow is mostly fat

Bone morrow produces 100 million red blood cells every minute