Open Question: When are the internal intercoastal muscles used during respiration?
21:33 Publicado por Anónimo
e. both c and d is the best answer.
"The internal intercoatals, however, are only used in forceful exhalation such as coughing or during exercise and not in relaxed breathing."
28 de mayo de 2011 a las 11:23
I think they would plays a vital rile during the respiration. Their can be many diagrams which can shows the effect of this process. And from that we can easily understand whole of the process.