Does lateral specialization apply to the frog's brain? An electron microscope observation.

The ultrastructure of polymorphic crystal-like inclusions occurring in the cytoplasm of neurons of only the medial portion of the left habenula has been studied in the adult frog Rana esculenta and in the tadpole with the use of three types of fixatives: osmium tetroxide, a mixture of aldehydes and potassium permanganate.