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What are the layers of the digestive system, starting from the lumen?
- 1. mucosa layer
- 2. submucosa layer
- 3. muscularis layer
- 4. serosa layer
single layer of epithelial cells
blood vessels, lymph vessels, and nerves
smooth muscle (peristalsis)
thick protective membrane
What are the parts of the small intestines?
- 1. Duodenum
- 2. Jujenum
- 3. Ileum
What are the parts of the large intestines?
- Ascending colon
- Transverse colon
- Descending colon
- Sigmoid colon
- Salivary amylase
- Moistens food to facilitate swallowing
- Dissolves food to enhance taste buds
- Aids in speech
- Neutralizes acid
folds of the stomach
- Found in the mucosa layer
- Consists of mucosa cells, chief cells, and parietal cells
mucus and bicarbonate
hydrochloric cells and intrinsic factor