Pancreas index

Trachea index

Cell Biology Index

Slides	Box	Images			References
Duodenum Ward's M 3590	2				Cormack plate 4-1C
Necturus  intestine Z14.52	2				di Fiore figs. 1-4 & 1-5
		400 X duodenum	400 X duodenum with labels	Necturus intestine	Rhodin page 63

There are several different slides in these boxes. Look at the lining of the duodenum (box 26). The lumen in lined with a simple columnar epithelium containing goblet cells and microvilli. The microvilli are so dense at the apical end of the cells that is looks like a border on top of the cells. The early microscopists called this a striated border. We now know that it is made of many microvilli and it is sometimes refered to as a microvillous border. The striated border shows much clearer in the slide made from the intestine of Necturus (see figures above).