SMA also stains myofibroblasts (which are sometimes difficult to distinguish from myoepithelial cells morphologically 3) as well as smooth muscle cells. Rats have six pairs of mammary glands ...
The first layer is the outer lipid layer, which is derived from meibomian, Zeis, and Moll glands ... lacrimal glands of Krause and Wolfring. The final inner mucin layer is derived from the goblet ...