5 Written questions
5 Matching questions
- Functions of the Small Intestine
- G cells
- Lining of the Stomach
- Mechanical processing
- a 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.
- b Chewing, churning (mastication) and makes materials easier to propel along digestive tract.
- c Release the hormone Gastrin, which stimulates secretions by parietal and chief cells.
- d Plays a key role in digestion and absorption of nutrients, and 90% of nutrient absorption occurs here.
- e Simple columnar epithelium which invaginates to form gastric glands.
5 Multiple choice questions
- Movement of organic substances, ions, vitamins, and water for lumen, across the cells of epithelial lining, and into interstitial fluid (and blood vessels).
- Function is ingestion and to transport along the length of the tube, and lined with stratified epithelium for protection.
- Four major layers: from inside to outside: mucosa, submucosa, muscularis, and serosa.
- Secrete Pepsinogen, which is converted to pepsin (a protease enzyme) that breaks down proteins by gastric acid.
- Plicae, Vili, and Microvilli.
5 True/False questions
Surface Epithelium → Movement of organic substances, ions, vitamins, and water for lumen, across the cells of epithelial lining, and into interstitial fluid (and blood vessels).
Myenteric Nerve Plexus → Contains sensory neurons that sense muscle stretch, motor neurons (sympathetic and parasympathetic) that coordinate peristalsis, and innervates this muscular layer.
Parietal cells → Secrete HCl (hydrochloric acid)- gastric acid.
Digestion → The chemical breakdown of food into smaller fragments.
Duodenum → 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.