5 Written questions
5 Matching questions
- Functions of the Small Intestine
- Chief cells
- a Folds in the intestinal lining, which increase surface area and are covered with villi.
- b The middle segment of the small intestine, about 8 feet one, and the site of most digestion and absorption.
- c Plays a key role in digestion and absorption of nutrients, and 90% of nutrient absorption occurs here.
- d The chemical breakdown of food into smaller fragments.
- e Secrete Pepsinogen, which is converted to pepsin (a protease enzyme) that breaks down proteins by gastric acid.
5 Multiple choice questions
- The outer lining of the digestive tract, composed of simple squamous epithelium, and loose connective tissue.
- Ingestion, Mechanical processing, secretion, digestion, absorption, and excretion.
- Occurs when materials enter digestive tract via the mouth.
- G cells and Stem cells.
- Bordered by superiorly by the diaphragm, bordered inferiorly by the pelvic cavity, and lined by the peritoneum a serous membrane.
5 True/False questions
How the Small Intestine Increases Surface Area? → Plicae, Vili, and Microvilli.
Excretion → The chemical breakdown of food into smaller fragments.
Ileum → Fingerlike projections, which increase surface area.
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.
G cells → Release the hormone Gastrin, which stimulates secretions by parietal and chief cells.