Climate and Weather. Letâs be honest, few people come to Alaska for the weather. We are a land full of majestic mountains and waters populated by bears, whales, eagles, and heart-stopping scenery, but our weather, especially in Kodiak, can be challenging. The island, a rain forest, receives approximately 70 inches of rain and 70 inches of snow per year.
The pillar-like epithelial cells cover the finger-like projections (villi) of the intestinal surface. Observe the variation in appearance of the epithelial layer which is caused by different angles of cutting (refer to p. 6 of the lab manual).
In the small intestine, villi are folds of the mucosa that increase the surface area of the intestine. The villi contain a lacteal, a vessel connected to the lymph system that aids in the removal of lipids and tissue fluids. Submucosa. 2  Muscular layer. 3  Serosa (if the tissue is intraperitoneal) / Adventitia (if the tissue is retroperitoneal) -- these last two tissue types differ slightly in form and function according to the part of the gastrointestinal tract they belong to (see the section below for more detail).