__________ is a muscular septum that separates the thoracic and abdominal cavity.
A. Diaphragm
B. Epiglottis
C. Glottis
D. Trachea
Answer:A
__________ is a muscular septum that separates the thoracic and abdominal cavity.
A. Diaphragm B. Epiglottis C. Glottis D. Trachea