1. An intestinal hormone that stimulates gastric secretion is
- gastric inhibitory peptide (GIP)
2. An intestinal hormone that stimulates the release of insulin from the pancreatic islet cells is
- gastric inhibitory peptide (GIP).
- vasoactive intestinal peptide (VIP).
Gastric inhibitory peptide (GIP)
3. The hormone that stimulates secretion and contraction by the stomach is
4. Which organ is responsible for dehydration and compaction of indigestible materials?
- small intestine
- large intestine
Name the major functions of the large intestine. (Module 22.16A)
- detoxifying alcohol and drugs, producing bile, storing bile
- producing buffers, absorbing vitamins, and storing bile
- producing digestive enzymes, producing acidic chyme, digesting proteins, fats and carbohydrates
- reabsorbing water and compacting material into feces, absorbing vitamins, and storing fecal material
- emulsifying lipids, synthesizing clotting factors, and absorbing and inactivating lipid-soluble drugs
reabsorbing water and compacting material into feces, absorbing vitamins, and storing fecal material
Which of the following descriptions is not related to cholecystokinin (CCK)?
- increases the sensation of hunger
- causes the gallbladder to contract and eject bile
- causes the relaxation of the hepatopancreatic sphincter
- accelerates the production and secretion of digestive enzymes
- secreted when chyme enters the duodenum
Increases the sensation of hunger
What organ is primarily responsible for water absorption?
- large intestine
- small intestine
The gastric phase of gastric secretion is triggered by the
- entry of chyme into the small intestine.
- release of cholecystokinin and secretin by the small intestine,
- entry of food into the stomach.
- entry of chyme into the large intestine.
- sight, thought, or smell of food.
- Entry of food into the stomach
Which of the following does not enhance the absorptive effectiveness of the small intestine?
- circular folds
- intestinal movements
Mary had most of her stomach surgically removed in an effort to overcome obesity. As a result, Mary can expect to be at risk for
- an ulcer.
- vitamin B12 deficiency.
- protein malnutrition.
Vitamin B12 deficiency
Circular folds are
- circumferential folds in the mucosa and submucosa of the small intestine.
- abnormal structures formed by excessive pressure in the small intestine.
- ridges in the wall of the stomach.
- ridges on the external edges of the colon.
- fingerlike projections on the surface of the mucosa of the small intestine.
Circumferential folds in the mucosa and submucosa of the small intestine.
A drug that blocks the action of carbonic anhydrase in parietal cells would result in
- a higher pH in the stomach during gastric digestion.
- a lower pH in the stomach during gastric digestion.
- increased protein digestion in the stomach.
- decreased gastrin production.
- decreased production of pepsinogen by chief cells.
A higher pH in the stomach during gastric digestion
The enzyme pepsin digests
- nucleic acids.
The portion of the small intestine that attaches to the cecum is the
Submucosal glands that secrete mucus are characteristic of the
All of the following are true of the lining of the stomach except that it
- contains gastric pits.
- recycles bile.
- is covered by thick, alkaline mucus.
- is constantly being replaced.
- has a simple columnar epithelium.
Name the three pairs of salivary glands. (Module 22.19A)
- caudate, quadrate, falciform
- lingual, sublingual, and submandibular
- buccal, parotid, lingual
- sublingual, submandibular, and parotid
- serous, mucous, and parotid
Which of the following is false about secretions from the salivary glands?
- help control bacterial populations in the mouth
- help lubricate the oral cavity and its contents
- contain enzymes for the digestion of lipids
- contain enzymes for the digestion of carbohydrates
- are mostly water
Contain enzymes for the digestion of lipids
Serous cells in the submandibular salivary gland secrete what substance(s)?
- lingual lipase
- lysozyme and salivary amylase
- mucins and water
- intrinsic factor and hydrochloric acid
Lysozyme and salivary amylase
What is the function of the gallbladder? (Module 22.20D)
- synthesize and secrete bile
- store glycogen and lipids
- synthesize clotting factors
- store fat-soluble vitamins
- store and concentrate bile
Store and concentrate bile
Which of the following is not a function of the adult liver?
- producing bile
- synthesizing clotting factors
- producing blood cells
- synthesizing and releasing cholesterol
- storing iron
Producing blood cells
Describe cholecystitis. (Module 22.24B)
- Cholecystitis is inflammation of the liver.
- Cholecystitis is inflammation of the gallbladder.
- Cholecystitis is inflammation of the large intestine.
- Cholecystitis is inflammation of the small intestine.
- Cholecystitis is inflammation of the pancreas.
Cholecystokinin is inflammation of the gallbladder
All of the following enzymes are secreted by the pancreas except
Blockage of the common hepatic duct would interfere with digestion of
- complex carbohydrates.
Which of the following describes a correct connection with the digestive system?
- Mucosa-associated lymphatic tissue (MALT) is found throughout the large intestine.
- Capillaries receive fluids delivered by lymphatic vessels.
- The autonomic nervous system directs peristalsis of the intestines.
- The stomach releases hormones such as pepsin and intrinsic factors that assist in digestion.
- Newly absorbed nutrients travel first to the liver via hepatic portal artery.
The autonomic nervous system directs peristalsis of the intestines
What effects might a shortened frenulum of tongue cause? (Module 22.6D)
- difficulty tasting spicy foods
- difficulty tasting sweet foods
- difficulty fighting off infections
- difficulty eating or talking
- difficulty trapping bacteria and other pathogens that enter the oral cavity
Difficulty eating or talking
Explain the significance of peritoneal fluid. (Module 22.9C)
- nutrients pass from the digestive lumen into the peritoneal fluid before entering the bloodstream
- provide a liquid medium for the intestines to be suspended in
- gas exchange occurs in the peritoneal fluid
- prevent friction and irritation when digestive organs move
- hormones travel through the peritoneal fluid to their target digestive organs
Prevent friction and irritation when digestive organs move
The oral mucosa has ________ epithelium.
- stratified columnar
- simple squamous
- stratified squamous
Name the three main parts of a typical tooth. (Module 22.7A)
- papilla, cortex, and medulla
- bulb, shaft, and root
- labia, body, and root
- canal, cavity, and socket
- crown, neck, and root
The functions of the oral cavity include all of the following except
- digestion of carbohydrates.
- mechanical processing of food.
- absorption of monosaccharides.
- analysis of material before swallowing.
Absorption of monosaccharides
The movement of organic molecules, electrolytes, minerals, and water across the digestive epithelium into interstitial fluid is known as
Chemical breakdown of materials by acid and enzymes takes place in the
- oral cavity.
- small intestine.
- large intestine.
The root of each tooth sits in a bony cavity known as a(n)
Starting at the mouth, identify the major organs of the digestive tract. (Module 22.1B)
- oral cavity (mouth), teeth, tongue, salivary glands, pharynx, stomach, small intestine, large intestine
- oral cavity (mouth), larynx, trachea, esophagus, stomach, pancreas, galibladder
- oral cavity (mouth), pharynx, gallbladder, pancreas, liver, small intestine, large intestine
- oral cavity (mouth), pharynx, larynx, trachea, stomach, small intestine, liver
- oral cavity (mouth), pharynx, esophagus, stomach, small intestine, large intestine
Oral cavity (mouth), pharynx, esophagus, stomach , small intestine, large intestine.
The ability of smooth muscle to contract over a wide range of lengths is called ________, while its normal background level of activity is known as ________.
- extensibility; plasticity
- electicity; spasticity
- plasticity; tone
- plasticity; compaction
- elasticity; tone
Waves of muscular contractions that propel the contents of the digestive tract are called
- churning movements.
- pendular movements.
Each of the following organs is a component of the digestive tract except the
Contraction of the ________ alters the shape of the intestinal lumen and moves epithelial pleats and folds.
- muscularis mucosa
- submucosal plexus