Whether variation of temperature induces in anisotropic organs only one type of response, or two types, positive and negative.
Thick lines represent the more excitable side of an anisotropic or dorsiventral organ.
The only condition requisite for the exhibition of response is the differential excitability of an anisotropic organ.
Both are adapted for determining the axes of elasticity and for the differentiation of isotropic and anisotropic bodies.
anisotropic an·i·so·trop·ic (ān-ī'sə-trŏp'ĭk, -trō'pĭk)
Having physical properties that differ according to the direction of measurement.
Differing according to orientation, as light scattered by a liquid crystal; light striking the liquid crystal's surface at a 90° angle might not be reflected (so the surface appears dark when viewed head-on), while light striking it at shallower angles is reflected (so the surface appears illuminated when viewed from a shallow angle). Compare isotropic.