 
 <translate> To answer this question, we should know that: The thoracic cavity consists of three cavities that fill the interior area of the chest. The answer is the interior area of the chest. <hau> Don a amsa wannan tambayar, ya kamata mu san cewa: Ƙwayar ƙirjin ta ƙunshi ƙwaya guda uku da suke cika ciki na kirji. Amsar ita ce cikin kirji. 