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Crucigrama Sopa de Letras Hoja de Trabajo
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Body systems

Horizontales
The opening behind the nose and mouth
A watery liquid in your mouth
To breathe in
Very fine blood vessels that conect arteries and veins.
The teeth in the back used for griding
A passage that connects the throat to the stomach
Tiny air bags in the lungs that absorb the oxygen
Verticales
Finger-like lining of the small intestine
The front teeth used for cutting food
To breathe out
A flap of cartilage at the base of the pharynx that prevents solid particles from entering into the lungs
Tubes that carry blood to the heart
The passage that leads from the pharynx to the lungs
Tubes that carry blood from the heart