BIO 202 EXAM 3 STUDY COMPREHENSIVE
QUESTIONS AND ANSWERS GRADED A+
PREPARATION
◉ Organs of the digestive tract.
Answer: Mouth, pharynx, esophagus, stomach, small intestine, large
intestine, rectum, anal canal, anus
◉ Functions of the digestive system.
Answer: Ingestion, mastication, propulsion, mixing, secretion,
digestion, absorption, elimination
◉ Absorption.
Answer: Movement of digested nutrients from the digestive tract
into the blood or lymph
◉ Digestive tract layers (inside → outside).
Answer: Mucosa → Submucosa → Muscularis → Serosa
◉ Mucosa.
Answer: Epithelium, lamina propria, muscularis mucosae
,◉ Submucosa.
Answer: Connective tissue with blood vessels, nerves, glands,
submucosal plexus
◉ Muscularis.
Answer: Circular and longitudinal smooth muscle; responsible for
peristalsis
◉ Serosa.
Answer: Outer connective tissue covering (visceral peritoneum)
◉ Enteric plexus.
Answer: Coordinates peristalsis and local digestive reflexes
◉ Function of saliva.
Answer: Lubricates food, begins carbohydrate digestion, dissolves
food for taste
◉ Salivary amylase.
Answer: Begins starch digestion
◉ Upper esophageal sphincter.
, Answer: Prevents air from entering the esophagus
◉ Lower esophageal sphincter.
Answer: Prevents stomach contents from refluxing into the
esophagus
◉ Mastication.
Answer: Chewing
◉ Organ connecting mouth to stomach.
Answer: Esophagus
◉ Three phases of swallowing.
Answer: Voluntary → Pharyngeal → Esophageal
◉ Regions of the stomach.
Answer: Cardia, fundus, body, pylorus
◉ Stomach secretions.
Answer: HCl, pepsinogen, intrinsic factor, mucus, gastrin
◉ What protects the stomach?.
QUESTIONS AND ANSWERS GRADED A+
PREPARATION
◉ Organs of the digestive tract.
Answer: Mouth, pharynx, esophagus, stomach, small intestine, large
intestine, rectum, anal canal, anus
◉ Functions of the digestive system.
Answer: Ingestion, mastication, propulsion, mixing, secretion,
digestion, absorption, elimination
◉ Absorption.
Answer: Movement of digested nutrients from the digestive tract
into the blood or lymph
◉ Digestive tract layers (inside → outside).
Answer: Mucosa → Submucosa → Muscularis → Serosa
◉ Mucosa.
Answer: Epithelium, lamina propria, muscularis mucosae
,◉ Submucosa.
Answer: Connective tissue with blood vessels, nerves, glands,
submucosal plexus
◉ Muscularis.
Answer: Circular and longitudinal smooth muscle; responsible for
peristalsis
◉ Serosa.
Answer: Outer connective tissue covering (visceral peritoneum)
◉ Enteric plexus.
Answer: Coordinates peristalsis and local digestive reflexes
◉ Function of saliva.
Answer: Lubricates food, begins carbohydrate digestion, dissolves
food for taste
◉ Salivary amylase.
Answer: Begins starch digestion
◉ Upper esophageal sphincter.
, Answer: Prevents air from entering the esophagus
◉ Lower esophageal sphincter.
Answer: Prevents stomach contents from refluxing into the
esophagus
◉ Mastication.
Answer: Chewing
◉ Organ connecting mouth to stomach.
Answer: Esophagus
◉ Three phases of swallowing.
Answer: Voluntary → Pharyngeal → Esophageal
◉ Regions of the stomach.
Answer: Cardia, fundus, body, pylorus
◉ Stomach secretions.
Answer: HCl, pepsinogen, intrinsic factor, mucus, gastrin
◉ What protects the stomach?.
