Page 22 - Anatomy and Physiology of Farm Animals, 8th Edition
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Introduction to Anatomy and Physiology / 7
(A) (B)
VetBooks.ir
(D)
(C)
(F)
(E)
(H)
(G)
Figure 1-3. Primary types of epithelial tissues. (A) Simple squamous. (B) Simple squamous in tubular
arrangement. (C) Simple cuboidal. (D) Simple cuboidal arranged as a duct. (E) Simple columnar.
(F) Pseudostratified columnar with cilia. (G) Transitional. (H) Stratified squamous.
Simple squamous epithelium consists tion. The linings of body cavities and blood
of a thin layer of plate‐like cells. They are vessels, and the serosa that covers many
expanded laterally but have little thickness organs in the abdomen and thorax, are all
or depth. The edges are joined somewhat composed of simple squamous epithelium.
like a mosaic tile covering a floor. A layer Simple cuboidal epithelial cells (Fig. 1‐4)
of simple squamous epithelium has little are approximately equal in all dimensions.
tensile strength and is found only as a They are found in some ducts and in
covering layer for stronger tissues. Simple passageways in the kidneys. The active
squamous epithelium is found where a tissue of many glands is composed of
smooth surface is required to reduce fric- cuboidal cells.
