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During an action potential,sodium ions enter into the cell.
Abdominal
Pertaining to the abdomen, the body region that contains the primary organs of the digestive system.
Thoracic
Pertaining to the thorax, or chest region, which houses the heart and lungs among other vital organs.
Dorsal
Relating to the back or posterior part of an organism in contrast to the ventral, or front, side.
Mediastinum
The central compartment of the thoracic cavity, located between the lungs, containing the heart, thymus, esophagus, trachea, and major blood vessels.
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