Answer:
The correct option is;
Muscular and respiratory system
Explanation:
The diaphragm which separates the chest or thoracic cavity from the abdominal cavity consists of a muscles and membranes, shaped as a dome and serves as the major respiratory muscle
In the muscular system, the diaphragm muscles can be found, emanating from the breastbone, the ribs and the loin region, such that when the diaphragm contracts, the thoracic cavity is increased and air rushes into the lungs.
Similarly, when the diaphragm is relaxed the lungs, the reduced thoracic cavity height results in the expiration of air
As such the muscles of the diaphragm assists in respiration.
