| A | B |
|---|
| mechanical obstruction | when bowel is physically blocked by problems outside the intestines |
| nonmechanical obstruction | paralytic ileus |
| reasons for bowel obstructions | adhesions, cancer, hernias, Crohns |
| paralytic ileus | reduced or absent peristalsis |
| partial obstruction | some GI contents come through |
| complete obstruction | no contents can pass through |
| simple intestinal obstruction | intact blood supply |
| strangulated | no blood supply |
| pseudo-obstruction | GI motility disorder |
| vascular obstruction | emboli or thrombi alter blood supply |
