5 Written Questions
5 Matching Questions
- Functions of the Digestive System
- Regions of the Small Intestine
- Abdominal Cavity
- a Movement of organic substances, ions, vitamins, and water for lumen, across the cells of epithelial lining, and into interstitial fluid (and blood vessels).
- b A hollow muscular tube, transports solid food and liquids to the stomach, and passes through the diaphragm muscle to get from the larynx to the abdomen.
- c Bordered by superiorly by the diaphragm, bordered inferiorly by the pelvic cavity, and lined by the peritoneum a serous membrane.
- d Duodenum, Jejunum, and Ileum.
- e Ingestion, Mechanical processing, secretion, digestion, absorption, and excretion.
5 Multiple Choice Questions
- G cells and Stem cells.
- The last segment of the small intestine, about 12 feet long, and ends at the Ileocecal valve: controls the flow from the small intestine into the large intestine.
- Contains sensory neurons that sense muscle stretch, motor neurons (sympathetic and parasympathetic) that coordinate peristalsis, and innervates this muscular layer.
- 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.
- Secrete Pepsinogen, which is converted to pepsin (a protease enzyme) that breaks down proteins by gastric acid.
5 True/False Questions
Villi → Fingerlike projections, which increase surface area.
How the Small Intestine Increases Surface Area? → Function is digestion and absorption, and are lined with simple columnar epithelium for rapid transport across the epithelial lining.
Components of Digestive System → Oral cavity, teeth, tongue, esophagus, liver, gallbladder, large intestine, salivary glands, pharynx, stomach, pancreas, and small intestine. From the mouth to the anus.
Microvilli → Fingerlike projections, which increase surface area.
Peristalsis → Waves of muscular contractions that moves a bolus along the length of the digestive tract. Circular smooth muscle layer behind bolus, longitudinal smooth muscle layer ahead of boys contracts: shortening adjacent segments, and wave of contraction in circular muscles: forces bolus forward.