20 Question Quiz Key
1. Which of the following is NOT an accessory organ of the
digestive system?
a. Tongue
b. Teeth
c. Intestines
d. Salivary glands
2. The major sit for nutrient absorption is the ______.
a. Small intestine
b. Stomach
c. Large intestine
d. Mouth
3. The primary goal of digestive tract regulatory mechanism is to
optimize nutrient breakdown and absorption.
a. True
b. False
4. The serous membrane that covers the external surface of most
digestive organs is called the _____.
a. Omentum
b. Parietal peritoneum
c. Visceral peritoneum
d. Mesentery
5. ______ circulation collects nutrient-rich blood from the GI
tract and delivers it to the liver.
a. Cardiac
b. Peritoneal
c. Aortic
d. Hepatic portal
6. Main site of nutrient absorption Mucosa
7. Protective outermost layer of the alimentary canal Serosa
8. Moderately dense connective tissue that has a rich supply of
blood, lymphatic vessels, and nerve fibers Submucosa
9. Responsible for segmentation and peristalsis Muscularis
externa
10.
Saliva contains enzymes that break down proteins.
a. True
b. False
11. The permanent dention consists of ____ teeth in a full set.
a. 10
b. 16
c. 20
d. 32
12. A weak gastroesophageal sphinceter can result in heartburn.
a. True
b. False
13. Which of the following is NOT a function of the stomach?
a. The stomach mechanically digests food.
b. The stomach produces intrinsic factor.
c. The stomach chemically digest lipids.
d. The stomach serves as a temporary holding area for
ingested food.
14.The phases of gastric secretion from first to last are ______.
a. Cephalic phase, gastric phase, intestinal phase
b. Cephalic phase, intestinal phase, gastric phase
c. Gastric phase, cephalic phase, intestinal phase
d. Intestinal phase, gastric phase, cephalic phase
15. The increased concentration of HCO3- in blood draining from
the stomach is called _______
a. the enterogastric reflex
b. the gastric phase
c. the alkaline tide
d. the chloride shift
16. The _______ is the first segment of the small intestine.
a. Jejunum
b. Colon
c. Ileum
d. Duodenum
17. Digestion of carbohydrates and proteins by brush border
enzymes occurs within the ____ of the small intestine.
a. Circular folds
b. Microvilli
c. Goblet cells
d. Villi
18.
Bile is stored and concentrated in the
a. Liver
b. Gallbladder
c. Pancreas
d. Stomach
19.Which of the following is NOT a characteristic of the liver?
a. It stores glucose
b. It has a role in detoxifying the blood
c. It is highly regerative
d. it has three lobes
20.
______ is NOT found in the pancreatic secretions.
a. Procarboxypeptidase
b. Chymotrypsinogen
c. Cholecystokinin (CCK)
d. Bicarbonate