WGU D313- ANATOMY AND
PHYSIOLOGY II – DIGESTIVE EXAM
QUESTIONS & UPDATED CORRECT
ANSWERS
What is a source of complex carbohydrates?
a. Eggs
b. Syrup
c. Milk
d. Legumes - Correct Answer ✔✔ d. Legumes
What do animal sources of protein have that plant sources of protein do not? - Correct
Answer ✔✔ Essential amino acids
What is a source of protein?
a. Fruit
b. Soy
c. Wheat - Correct Answer ✔✔ b. Soy
Why is insoluble fiber helpful in a diet? - Correct Answer ✔✔ Increases stool bulk to
reduce transit time of food through the digestive tract
What is a function of lipids in a diet? - Correct Answer ✔✔ Make hormones and
surround nerves
What is a characteristic of unsaturated fats? - Correct Answer ✔✔ Liquid at room
temperature
What are 2 major functions of the pancreas? - Correct Answer ✔✔ 1. Produces insulin
and glucagon to control blood sugar levels.
2. Secretes digestive enzymes to break down macronutrients.
What are 2 functions of the peritoneum? - Correct Answer ✔✔ 1. Anchors intestines to
the abdominal wall.
2. Prevents friction between the abdominal organs.
Which process occurs throughout most of the alimentary canal? - Correct Answer ✔✔
Propulsion
, Which organ of the digestive system mixes and churns food with the gastric juices to
form chyme? - Correct Answer ✔✔ Stomach
What is the function of saliva? - Correct Answer ✔✔ Assists in the taste sensation
What is the correct path that food takes through the large intestine? - Correct Answer
✔✔ Cecum, ascending colon, transverse colon, descending colon, sigmoid colon
Which cells of the stomach secrete digestive hormones? - Correct Answer ✔✔
Enteroendocrine cells
What is a function of the upper esophageal sphincter? - Correct Answer ✔✔ Allows
food bolus to pass from the pharynx into the esophagus
What is the goal of peristalsis? - Correct Answer ✔✔ Propel bolus or chyme along the
digestive tract
What happens during the buccal phase of deglutition? - Correct Answer ✔✔ A single
food bolus is formed
What triggers the defecation reflex? - Correct Answer ✔✔ Stretching of the walls of the
rectum
Parietal cells secrete _____ - Correct Answer ✔✔ Hydrochloric acid
Pancreatic juice ____ - Correct Answer ✔✔ Buffers chyme
Where does the chemical digestion of starch begin? - Correct Answer ✔✔ Mouth
What are 2 functions of rugae of the stomach? - Correct Answer ✔✔ 1. Allows for
expansion of the stomach.
2. Increase surface area.
What is the function of the mucin that is secreted by surface mucous cells in the
stomach? - Correct Answer ✔✔ Protects the underlying mucosa from the acidity of the
stomach contents
Which cells secrete an intrinsic factor that is essential for the absorption of Vitamin
B12? - Correct Answer ✔✔ Parietal cells
Pepsinogen is secreted by ____ and converted to pepsin by _____. - Correct Answer
✔✔ Chief cells; hydrochloric acid
What is accomplished by peristaltic movements within the stomach? - Correct Answer
✔✔ Mixing bolus with gastric juices to produce chyme
PHYSIOLOGY II – DIGESTIVE EXAM
QUESTIONS & UPDATED CORRECT
ANSWERS
What is a source of complex carbohydrates?
a. Eggs
b. Syrup
c. Milk
d. Legumes - Correct Answer ✔✔ d. Legumes
What do animal sources of protein have that plant sources of protein do not? - Correct
Answer ✔✔ Essential amino acids
What is a source of protein?
a. Fruit
b. Soy
c. Wheat - Correct Answer ✔✔ b. Soy
Why is insoluble fiber helpful in a diet? - Correct Answer ✔✔ Increases stool bulk to
reduce transit time of food through the digestive tract
What is a function of lipids in a diet? - Correct Answer ✔✔ Make hormones and
surround nerves
What is a characteristic of unsaturated fats? - Correct Answer ✔✔ Liquid at room
temperature
What are 2 major functions of the pancreas? - Correct Answer ✔✔ 1. Produces insulin
and glucagon to control blood sugar levels.
2. Secretes digestive enzymes to break down macronutrients.
What are 2 functions of the peritoneum? - Correct Answer ✔✔ 1. Anchors intestines to
the abdominal wall.
2. Prevents friction between the abdominal organs.
Which process occurs throughout most of the alimentary canal? - Correct Answer ✔✔
Propulsion
, Which organ of the digestive system mixes and churns food with the gastric juices to
form chyme? - Correct Answer ✔✔ Stomach
What is the function of saliva? - Correct Answer ✔✔ Assists in the taste sensation
What is the correct path that food takes through the large intestine? - Correct Answer
✔✔ Cecum, ascending colon, transverse colon, descending colon, sigmoid colon
Which cells of the stomach secrete digestive hormones? - Correct Answer ✔✔
Enteroendocrine cells
What is a function of the upper esophageal sphincter? - Correct Answer ✔✔ Allows
food bolus to pass from the pharynx into the esophagus
What is the goal of peristalsis? - Correct Answer ✔✔ Propel bolus or chyme along the
digestive tract
What happens during the buccal phase of deglutition? - Correct Answer ✔✔ A single
food bolus is formed
What triggers the defecation reflex? - Correct Answer ✔✔ Stretching of the walls of the
rectum
Parietal cells secrete _____ - Correct Answer ✔✔ Hydrochloric acid
Pancreatic juice ____ - Correct Answer ✔✔ Buffers chyme
Where does the chemical digestion of starch begin? - Correct Answer ✔✔ Mouth
What are 2 functions of rugae of the stomach? - Correct Answer ✔✔ 1. Allows for
expansion of the stomach.
2. Increase surface area.
What is the function of the mucin that is secreted by surface mucous cells in the
stomach? - Correct Answer ✔✔ Protects the underlying mucosa from the acidity of the
stomach contents
Which cells secrete an intrinsic factor that is essential for the absorption of Vitamin
B12? - Correct Answer ✔✔ Parietal cells
Pepsinogen is secreted by ____ and converted to pepsin by _____. - Correct Answer
✔✔ Chief cells; hydrochloric acid
What is accomplished by peristaltic movements within the stomach? - Correct Answer
✔✔ Mixing bolus with gastric juices to produce chyme
