5 Written questions
5 Matching questions
- Parietal cells
- Surface Epithelium
- a A common passageway for solid food, liquids, and air that is shared by the digestive and respiratory systems, and food passes through this to the esophagus.
- b Is either stratified or simple columnar.
- c Secrete HCl (hydrochloric acid)- gastric acid.
- d The middle segment of the small intestine, about 8 feet one, and the site of most digestion and absorption.
- e Two thick layers of smooth muscles- inner and outer longitudinal, and involved in peristalsis, which is wave-like muscular contractions that move materials along digestive tract, and contains a nerve plexus.
5 Multiple choice questions
- The chemical breakdown of food into smaller fragments.
- Occurs when materials enter digestive tract via the mouth.
- Secrete mucus for protection.
- The first segment of the small intestine, begins at the pyloric sphincter: which controls flow from the stomach to here, about 1 foot long, and it receives: chyme from the stomach and digestive enzymes and buffers from pancreas and liver.
- Ingestion, Mechanical processing, secretion, digestion, absorption, and excretion.
5 True/False questions
Functions of the Small Intestine → Duodenum, Jejunum, and Ileum.
Oral Cavity, Pharynx, Esophagus, and Anus Surface Epithelium → Function is digestion and absorption, and are lined with simple columnar epithelium for rapid transport across the epithelial lining.
Villi → Fingerlike projections, which increase surface area.
G cells → Release the hormone Gastrin, which stimulates secretions by parietal and chief cells.
Submucosa → The inner lining of the digestive tract and consists of its own three layers: epithelium, lamina propria: loose CT, and muscularis mucosae: a thin smooth muscle layer.