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Basement membrane
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Simple squamous epithelial cell <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-1-ping.png)
Simple squamous epithelial cell
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Nucleus <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-2-ping.png)
Nucleus
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Inset (higher magnification) <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-3-ping.png)
Inset (higher magnification)
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Plasma membrane <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-4-ping.png)
Plasma membrane
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Lamina lucida <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-5-ping.png)
Lamina lucida
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Lamina densa <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-6-ping.png)
Lamina densa
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Reticular lamina <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-7-ping.png)
Reticular lamina
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x
![Junctional complex <p>All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Lin_.AS-1-8-ping.png)
Junctional complex
All epithelia rest on a basement membrane, which consists of two components, the basal lamina, secreted by epithelial cells, and a reticular lamina, secreted by fibroblasts in the underlying connective tissue. The basal lamina is, in turn, subdivided into lamina lucida and lamina densa. Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane. Serosa 15,000x