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optic stalk

^ http://purl.obolibrary.org/obo/XAO_0000475


Neural tissue comprising the proximal part of either of the optic vesicles as they project towards the sides of the head; it remains narrow and constitutes the optic stalk (the peripheral part of each expands to form a hollow bulb). [ http://purl.obolibrary.org/obo/UBERON_0003098 XAO:curators ]