Corti from the Dog

Vertical section of the organ of Corti from the dog. Labels: 1 to 2, homogeneous layer of the so-called membrana basilaris; u, vestibular layer; v, tympana layer, with nuclei and protoplasm; a, prolongation of tympanal periosteum of lamina spiralis ossea; c, thickened commencement of the membrana basilaris near the point of perforation of the nerves h; d, blood-vessel ( vas spirale) ; e, blood-vessel; f, nerves; g, the epithelium of the sulcus spiralis internus; i, internal or tufted cell, with basil process k, surrounded with nuclei and protoplasm (of the glanular layer), into which the nerve-fibers radiate; l, hairs of the internal hair-cell ; n, base or foot of inner pillar of organ of Corti, whose under half is missing, while the next pillar beyond, o, presents both middle portion and base; r s d, three external hair-cells; t, bases of two neighboring hair or tufted cells; x, so-called supporting cell of Hensen; W, nerve-fiber terminating in the first of the external hair cells.

Downloads