Anatomy quarter 3 final

Which of the following structures receives secretions from the liver and pancreas?
A) gallbladder
B) large intestine
C) mouth
D) small intestine
E) stomach

D) small intestine

Which of the following is NOT a function of the digestive system?
A) absorption of nutrients
B) chemical breakdown of food
C) excretion of waste products
D) mechanical breakdown of food
E) regulation of blood glucose concentration

E) regulation of blood glucose concentration

The esophagus conducts food from the pharynx down to the stomach by peristalsis. What muscle type is responsible for the initial voluntary action of swallowing?
A) Squamous
B) Cardiac
C) Cuboidal
D) Fibrous
E) Striated

E) Striated

The hydrolysis of fat is a problem within the digestive tract because
A) fat molecules are insoluble in water
B) there is no enzyme to emulsify fat
C) fat is rapidly absorbed into the body tissues
D) fat molecules do not have monomers
E) digestive juices cannot break down macromolecules

A) fat molecules are insoluble in water

If a person's stomach is surgically removed, the chemical digestion of proteins would begin in the
A) mouth
B) liver
C) small intestine
D) gall bladder
E) large intestine

C) small intestine

Which of the following will occur if the pyloric sphincter is closed?
A) Gastric ulcers will form.
B) Acid chyme will not be moved into the small intestine.
C) Secretin will not reach the stomach.
D) Food cannot enter the stomach from the esophagus.
E) Pepsin will destroy the stomach lining.

B) Acid chyme will not be moved into the small intestine.

What prevents the gastric enzyme, pepsin, from destroying the lining of the stomach?
A) The acidic environment of the stomach neutralizes the enzyme.
B) Acid chyme prevents the destruction of the lining.
C) Pepsin is secreted in an inactive form until it enters the stomach cavity.
D) Pepsin only acts on proteins, which are not present in the stomach lining.
E) Pepsinogen binds to pepsin to prevent the destruction of cells.

C) Pepsin is secreted in an inactive form until it enters the stomach cavity.

Saliva functions in all of the following ways EXCEPT
A) protecting the soft lining of the mouth
B) blocking the epiglottis during swallowing
C) preventing tooth decay
D) neutralizing acid in the mouth
E) killing bacteria in the mouth

B) blocking the epiglottis during swallowing

Chemical digestion of proteins occurs in the
A) colon
B) pancreas
C) large intestine
D) stomach
E) mouth

D) stomach

Which of the following is the result of the release of bile from the gallbladder?
A) It emulsifies lipids in the small intestine.
B) It emulsifies oils in the stomach.
C) It breaks down triglycerides into fatty acids and glycerol.
D) The digestive enzymes in bile break down organic molecules.
E) It aids in protein digestion in the small intestine.

A) It emulsifies lipids in the small intestine.

All of the following occur during digestion EXCEPT
A) polysaccharides are split into simple sugars
B) fats are digested into glycerol and fatty acids
C) carbohydrates are broken down into starches
D) proteins are broken down into amino acids
E) nucleic acids are cleaved into nucleotides

C) carbohydrates are broken down into starches

Bile functions in the digestion of which of the following?
A) Glycogen molecules
B) Glucose molecules
C) Protein molecules
D) Lipid molecules
E) Sucrose molecules

D) Lipid molecules

Bile salts
A) emulsify fats
B) break down protein molecules into amino acids
C) increase the pH of the solution it is in
D) are stored in the liver
E) are stored in the pancreas

A) emulsify fats

The chief purpose of villi is to
A) store B-lymphocytes
B) promote gas exchange in the lungs
C) increase surface area in the small intestine
D) store T-lymphocytes
E) decrease blood flow to certain regions of the body

C) increase surface area in the small intestine

The optimum site in the body and pH level for pepsin activity is
A) the small intestine and a pH of 2
B) the small intestine and a pH of 11
C) the stomach and a pH of 2
D) the stomach and a pH of 11
E) the stomach and a pH of 7

C) the stomach and a pH of 2

Which is the correct order that food takes through the digestive tract?
A) oral cavity - esophagus - pharynx - stomach -
small intestine - large intestine
B) oral cavity - pharynx - esophagus - stomach -
large intestine - small intestine
C) oral cavity - pharynx - esophagus - stomach -
small intestine - large intestine
D) oral cavity - pharynx - stomach -esophagus -
small intestine - large intestine
E) oral cavity - pharynx - esophagus - small
intestine - stomach - large intestine

C) oral cavity - pharynx - esophagus - stomach -
small intestine - large intestine

Which structure closes off the larynx to prevent food from entering the trachea?
A) epiglottis
B) esophagus
C) hyoid
D) soft palate
E) uvula

A) epiglottis

All of the following are accessory organs EXCEPT the;
A) gallbladder
B) liver
C) pancreas
D) rectum
E) salivary glands

D) rectum

Mucus secreting cells which line the small intestine are called
A) cilia
B) villi
C) goblet cells
D) phagocytes
E) Leydig cells

C) goblet cells

Which of the following can be removed from the body with usually little affect to the digestive system?
A) gallbladder
B) liver
C) salivary glands
D) small intestine
E) stomach

A) gallbladder

Which of the following is the most common serious complication of food poisoning?
A) blood loss
B) dehydration
C) infection
D) nutrient deficiency
E) starvation

B) dehydration

The correct terminology for having excessive stomach or intestinal gas is;
A) diarrhea
B) flatulence
C) halitosis
D) jaundice
E) vomiting

B) flatulence

What is colitis? and the symptoms?

inflammation of the large intestine

sympts: Abdominal pain, diarrhea

What is ciliac disease?

gluten intolerance

What does peristalsis look like? and what does it do?

a series of contractions and relaxations from esophagus down to the stomach to move food

What part of the digestive tract is affected when you have Crohn's disease?

the lining of the digestive tract