A large muscle that separates the oral cavity from abdominal cavity and helps in breathing (a) larynx (b) trachea(c) diaphrgm(d) alveolus

A large muscle that separates the oral cavity from abdominal cavity an

1.	A large muscle that separates the oral cavity from abdominal cavity and helps in breathing (a) larynx (b) trachea(c) diaphrgm(d) alveolus
Answer» The DIAPHRAGM is the strong wall of muscle that separates your chest cavity from your abdominal cavity. By moving downward, it creates suction to DRAW in air and expand the lungs. The smallest section of the BRONCHI are called BRONCHIOLES, at the end of which are the alveoli (plural of alveolus).