Mostrando entradas con la etiqueta respiratory system. Mostrar todas las entradas
Mostrando entradas con la etiqueta respiratory system. Mostrar todas las entradas

martes, 23 de abril de 2013

RESPIRATORY SYSTEM
The respiratory system is the responsible for maintaining the gases exchange between air, blood and cells. Functions:
  • It brings air into the body
  • It keeps the oxygen and expels the carbon dioxide.