RESPIRATORY AND DIGESTIVE SYSTEM
Respiratory System
You breathe with your lungs, lungs are part of the respiratory system
Your nose brings air in and out of your body
Your trachea connects the nose and mouth to the lungs.
Your lungs add oxygen to your blood.
Your mouth also brings air and out your body
Digestive System
VOCABULARY
No hay comentarios:
Publicar un comentario
Nota: solo los miembros de este blog pueden publicar comentarios.