At the mean pH of the laryngopharynx (pH = 6.8) pepsin would be inactive but could be reactivated upon subsequent acid reflux events resulting in damage to local tissues.
Aos pH medios da laringofarinxe (pH 6,8) a pepsina quedaría inactivada pero podería reactivarse nos episodios de refluxo ácido causando danos nos tecidos locais.