What is diaphragm? August 22, 2024September 30, 2020 by Author The diaphragm is a muscular sheet that separates the thoracic cavity from the abdominal cavity. Related Posts:Cells and Tissues of OrganismsWhat is prime number?What is muscular tissue?Middle EarWhy is hydra classified under the Cnidaria phylum?What is cervical cancer? Types, Signs and Symptoms, Causes