Text Fig. 1

Typical endodermal and secretory ectodermal cells. A, Endodermal cells. The cytoplasm contains large acidophil globules. The nucleus has a nucleolus and irregularly placed chromatin bodies. B, Secretory ectodermal cells. The cytoplasm is vacuolated. Fine chromatin strands radiate from the nucleolus to peripheral chromatin bodies in the nucleus.

chr, chromatin body; cy, cytoplasm; gl, globules; n, nucleus; nuc, nucleolus; st, chromatin strand.