5 Written Questions
5 Matching Questions
- Lamina Propria
- General Organization of the Digestive Tract
- Abdominal Cavity
- 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 Deep to the epithelial layer, loose connective tissue, and contains small blood vessels, small lymphatic vessels and lymphoid tissue, and small sensory and motor nerves.
- c Four major layers: from inside to outside: mucosa, submucosa, muscularis, and serosa.
- d Bordered by superiorly by the diaphragm, bordered inferiorly by the pelvic cavity, and lined by the peritoneum a serous membrane.
- e 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.
5 Multiple Choice Questions
- Chewing, churning (mastication) and makes materials easier to propel along digestive tract.
- The chemical breakdown of food into smaller fragments.
- Contains sensory neurons that sense muscle stretch, motor neurons (sympathetic and parasympathetic) that coordinate peristalsis, and innervates this muscular layer.
- G cells and Stem cells.
- Deep to the mucosa, dense irregular connective tissue, and contains large blood vessels, large lymphatic vessels, and large nerves.
5 True/False Questions
Absorption → Movement of organic substances, ions, vitamins, and water for lumen, across the cells of epithelial lining, and into interstitial fluid (and blood vessels).
Villi → 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.
Muscularis Mucosae → 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.
Esophagus → The outer lining of the digestive tract, composed of simple squamous epithelium, and loose connective tissue.
Surface Epithelium → Secrete HCl (hydrochloric acid)- gastric acid.