Fig. 5

Scanning Electron microscopic findings of the atlantooccipital space in adult Xenopus laevis. A1-A4. SEM images of the cross section of the atlas occipital space in Xenopus laevis. B1, B2. The SEM images of the sagittal plane of the atlas occipital space in Xenopus laevis. Each scale is shown. LGD: longissimus dorsi muscle; IAR: interarcualis muscle; DAOM/white circle: DAOM (dorsal atlantooccipital membrane); SDM: spinal dura mater; PMS/white arrow: perimysium; Yellow arrow: fiber connections.