Splits or pockets may form in the germinal sheet of cells forming vesicles or elongations. For isotropic symmetry the lateral elongations (or contractions) must also be equal (i.e. formula 126). The elongations and accents present in the Quran create a harmonious flow within the writing. The zygomatic arches are formed by elongations of the maxillae. Their zygomatic arches form elongations of the maxillae. In literature, the structure of these elongations are commonly referred to as 'fingers'. They also noted that the pores developed teeth-like elongations like those of genus "Irpex". Bar-shaped elongations of stars are observed in roughly two-thirds of all spiral galaxies. The folded thread inside the ball permits elastic elongations which extend the spider's striking range.