anatomical axis animal-vegetal axis BSPO:0000199 wasila.dahdul A-V axis animal/vegetal axis An axis that extends from the animal end of an egg or early embryo to the opposite, vegetal end. In animals with yolk-bearing eggs, the vegetal end is the yolk bearing pole. (pertains to animals only - both vertebrate and invertebrate embryos). AV axis spatial 2013-07-02T11:30:13Z