Medical anatomy sources explain that the diaphragm separates the thorax from the abdomen, and several important structures pass through it, including the esophagus, major blood vessels and the vagus nerves.
Because of its position, the diaphragm is not just about breathing. It also moves with pressure changes in the abdomen and chest, and it works closely with posture, ribs, spine, and core muscles.
What Is the Vagus Nerve?
The vagus nerve is one of the body’s major communication pathways. It helps carry signals between the brain and organs in the chest and abdomen. It is involved in heart rate, digestion, breathing-related reflexes, and the calming part of the nervous system.