Select from the following to define the terms 1-11. space surrounding each lung space between the lungs muscle separating the abdominal and thoracic cavities membrane surrounding the abdominal organs area below the umbilicus (as well as below the stomach) area above the stomach area of the navel areas near the groin nervous tissue within the spinal cavity bony tissue surrounding the spinal cavity pad of cartilage between two adjoining vertebrae 1. hypogastric region