Digestive Questions
What is the role of bile?
It breaks down large fat droplets into smaller droplets.
Which of the following is a function of fiber?
It helps move food through the digestive tract.
Which of the following is the proper order of structures that food must pass through on its way to the stomach?
Mouth, oropharynx, laryngopharynx, esophagus, stomach
Pancreatic lipase breaks fats down into which two digestive products?
Free fatty acids and monoglycerides
What is the name given to the multiple pouches in the outer wall of the colon?
Haustra
Which of the following terms describes the breakdown of a chemical compound using a water molecule?
Hydrolysis
Which movement within the small intestine is described as the contraction of circular smooth muscles that constrict the intestines into segments?
Segmentation
Which type of cell lines the stomach?
Simple columnar epithelial cells.
Which of the following best defines bile salts?
A fat emulsifier
What is the proper order of the four segments of the colon?
Ascending, transverse, descending, and sigmoid
Why is the appendix considered a potential trouble spot in the intestine?
Because bacteria can gather in it due to its long-slender shape, which might lead to inflammation, and spilling infectious material into the abdominal cavity.
When you put a bite of food in your mouth, why is there an increase in secretions from the gastric glands?
Because the parasympathetic nervous system is stimulated.
Which of the following secretions helps neutralize acidic chyme coming from the stomach?
Bicarbonate.
Which of the following is a large pouch that forms the beginning of the large intestine?
Cecum
What is the order a food mass follows through the small intestine?
Duodenum, jejunum, ileum
What is the name of the mechanism that inhibits gastric motility and the secretion of gastric acid?
Enterogastric reflex
Which of the following best describes the pancreas?
It is both an endocrine and an exocrine gland.
What is the role of Cholecystokinin?
It stimulates the gallbladder to release bile.
Which of the following is true about the gallbladder?
It stores and concentrates bile.
Which of the following structures are lymphatic capillaries that absorb dietary fats?
Lacteals
Which enzyme breaks down starch?
Pancreatic amylase.
Which of the following details the correct order in which proteins are digested?
Pepsin breaks down peptide bonds in the stomach, then the pancreatic enzymes complete the digestion in the intestines.
How does food move through the esophagus?
Peristalsis, a series of wavelike muscular contractions
How are lymphatic tissues an integral part of the ileum?
Peyer's Patches prevent bacteria from entering the bloodstream.
When the stomach is empty it folds in on itself, creating which feature?
Rugae
How does saliva help you to taste your food?
Saliva breaks down starches into simple sugars.
Which of the following substances will stimulate the liver to produce bile and the pancreas to release bicarbonate?
Secretin
Which of the following statements best describes the Alimentary Canal?
The Alimentary Canal is the long tube through which food passes and wastes are eliminated.
Why is the duodenum important in the small intestine?
The duodenum receives most of the digestive juices that breakdown food into nutrients.
If enzymes are created in the pancreas, where will they end up right after they leave the pancreas?
The duodenum.
Which structure controls the passage of food out of the stomach?
The pyloric sphincter.
Where does fat digestion take place?
The small intestine
How does the soft palate play an important role in the function of the pharynx?
The soft palate prevents food that is being swallowed from entering the nasopharynx.
Nutrient-rich blood goes from the digestive system to the liver through the _____, then the liver is drained by the _____.
hepatic portal vein, hepatic vein
After digestion, fats enter lymphatic capillaries known as _____.
lacteals
