5 Written questions
5 Matching questions
- Regions of the Small Intestine
- How the Small Intestine Increases Surface Area?
- Oral Cavity, Pharynx, Esophagus, and Anus Surface Epithelium
- Epithelial Cells of Gastric Glands- Endocrine cells
- a Function is ingestion and to transport along the length of the tube, and lined with stratified epithelium for protection.
- b Duodenum, Jejunum, and Ileum.
- c Plicae, Vili, and Microvilli.
- d G cells and Stem cells.
- e Deep to the mucosa, dense irregular connective tissue, and contains large blood vessels, large lymphatic vessels, and large nerves.
5 Multiple choice questions
- 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.
- Release the hormone Gastrin, which stimulates secretions by parietal and chief cells.
- Bordered by superiorly by the diaphragm, bordered inferiorly by the pelvic cavity, and lined by the peritoneum a serous membrane.
- Four major layers: from inside to outside: mucosa, submucosa, muscularis, and serosa.
- The epithelial lining is continuous, at the mouth and at the anus, with the external environment, it must accommodate these transitions at either end while remaining moist, it must also be very thin to accomplish both digestion and absorption, and it must handle the rapid turnover of its epithelial cells due to mechanical and chemical insults while protecting the deeper tissues against: chemical stresses corrosive effects of digestive acids and enzymes), mechanical stresses, such as abrasion, and pathogenic bacteria.
5 True/False questions
Plicae → Fingerlike projections, which increase surface area.
Excretion → Movement of organic substances, ions, vitamins, and water for lumen, across the cells of epithelial lining, and into interstitial fluid (and blood vessels).
Components of Digestive System → Ingestion, Mechanical processing, secretion, digestion, absorption, and excretion.
Regions of Stomach → Fundus, body, and pylorus.
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.