alternating posterior and anterior tectum membranes show that:
{"Image DocumentName": "alternating posterior and anterior tectum membranes show that:", "Image ImageDescription": "Nasal retinal cells extended axons equally well on both anterior and posterior tectal membranes. Temporal side retinal cells only extended axons on the anterior tectal membranes. Growth cones that extend on the posterior membranes collapse and retract. EphA receptors and ephrinA ligands have graded distributions in the retinotectal system.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}