All of the following are part of the gastrointestinal tract except the
D) small intestine.
Which of the following is NOT an accessory structure of the digestive system?
All of the following are areas of the stomach EXCEPT
Which of the following substances can be absorbed by the stomach?
A) amino acids
B) nucleic acids
D) fatty acids
All of the following are substances found in pancreatic juice EXCEPT
Which of the following is NOT a protein-digesting enzyme?
A) red blood cell production
All of the following are functions of the liver EXCEPT
A) red blood cell production.
B) storage of vitamins.
C) synthesis of bile salts.
D) excretion of bilirbin.
E) activation of Vitamin D.
Which of the following is NOT an enzyme in the breakdown of carbohydrates?
A) pancreatic amylase
B) salivary amylase
C) facilitated diffusion.
D) active transport
How does absorption in the small intestine occur?
Which of the following are absorbed into lacteals?
B) amino acids
D) nucleic acids
exocrine protein of the pancreas
What is the following:
A) is made of acinar cells.
B) secretes several different enzymes to digest the energy nutrients.
C) is controlled by the parasympathetic nervous system.
D) connects to the alimentary canal by the pancreatic duct.
What describes the following:
A) stimulates the gall bladder to contract.
B) is released in response to lipids entering the duodenum.
C) stimulates the release of pancreatic juice.
D) slows the movement of chyme into the duodenum.
Which of the following does not release substances into the duodenum?
C) gall bladder
cecum, ascending colon, transverse colon, descending colon, sigmoid colon, recutum
What is the correct order of movement of substances through the large intestine?
The organ that stores fat, glycogen, iron and certain minerals, and detoxifies certain chemicals is the:
The __ is a 20 foot piece of peritoneum that keeps the small intestines from springing out all over.
Which of the following is not a change in digestion associated with aging:
A) loss of taste
B) duodenal ulcers
E) periodontal disease
Which of the following is unlikely to be a cause of "emotional eating"?
A) unpleasant feelings like boredom
B) the possibility that carbohydrates raise serotonin levels
C) poor self esteem
Which phase of digestion does the following describe?
A) cholecystokinin produces a full feeling
B) secretin stimulates the flow of pancreatic juices
True or False: Most of the energy nutrients are small enough to be absorbed in the small intestine by the blood capillaries but the nutrient, fatty acids, must be absorbed into lacteals.
True or False: Both food and air pass through the oropharynx so the uvula protects the nasal cavity when swallowing.
True or False: The mucosal layer of the large intestine is lined with millions of fingerlike projections called villi.
True or False: Many things can stimulate the vomit reflex including irritation, overextension of the stomach and various chemicals.
True or False: The cardiac sphincter (cardia) prevents food and acid from moving into the duodenum too quickly.
True or False: Food has emotional, social and psychological functions as well as its nutritional value.
True or False: Insoluble and soluble fiber have opposite effects on motility but aid in the digestive process and reduce the risk of developing serious digestive disorders.
The medical specialty that deals with the structure, function, diagnosis, and treatment of the stomach and intestines is called ____.
Swallowing is divided into tree stages: the voluntary stage, the pharyngeal stage, and the _____ stage.
The hormone responsible for the ejection of bile from the gallbladder is ____.
The puckered appearance of the colon is caused by contractions of the ____________________.
1) Ingestion- The take-in of food through the mouth
2) Mixing and movement of food along the digestive tract through muscle movement.
3) Digestion- The chemical and mechanical breakdown of food.
4) Absorption- The uptake of digested food from the GI tract into the circulation.
5) Defecation- The elimination of indigestible substances from the GI tract.
Name and describe the five basic activities of the digestive system.
1) Parotid glands are located under and in front of the ears between the skin and the masseter muscle.
2) The submandibular glands lie beneath the base of the tongue in the floor of the mouth.
3) The sublingual glands lie in front of the submandibular glands.
Name and briefly describe the location of the different salivary glands.
1. Carbohydrate metabolism
2. Lipid metabolism
3. Protein metabolism
4. Removal of drugs and hormones
5. Excretion of bile
6. Synthesis of bile salts
9. Activation of Vitamin D
Name the functions of the liver.
Monosaccharides, amino acids, and short-chain fatty acids are absorbed into blood capillaries. Long-chain fatty acids and monoglycerides are absorbed as part of micelles, re-synthesized to triglycerides, and transported as chylomicrons.
Chylomicrons are taken up by the lacteals.
Briefly describe the absorption of nutrients in the small intestine.