Deck 55: Digestive Organs

Question 1

Which of the following is not true of mesenteries?

A) They are folds of the peritoneal membrane.
B) They are not present in the large intestine.
C) They suspend abdominal viscera from the abdominal walls.
D) They contain blood vessels that supply blood to the loops of the small intestine.
E) All of these are true of mesenteries.

Answer 1

B

Question 2

Which substance(s) pass(es) through the hepatopancreatic sphincter?

A) Gastric juice only
B) Bile only
C) Bile and gastric juice
D) Bile and pancreatic juice
E) Pancreatic juice only

Answer 2

D

Question 3

Most of the digestion and absorption in the small intestine is accomplished by the ________; the longest portion of the small intestine is the ________.

A) ileum; jejunum
B) duodenum; jejunum
C) jejunum; ileum
D) jejunum; duodenum
E) duodenum; ileum

Answer 3

C

Question 4

The splenic flexure of the large intestine is on the left side of the body.

Question 5

A hepatic triad contains branches of all of the following vessels except

A) the hepatic vein.
B) a bile ductule.
C) the hepatic artery.
D) the hepatic portal vein.
E) a hepatic triad contains branches of all of these vessels.

Question 6

Bile is produced by the liver and gallbladder.

Question 7

Which of the following is not true of the anatomy of the stomach?

A) The muscularis contains three layers, whereas most tubular digestive organs contain two.
B) The greater curvature is on the lateral and inferior surfaces of the stomach.
C) The pyloric sphincter regulates the flow of chyme from the stomach into the duodenum.
D) The cardia is the region that lies superior to the opening of the esophagus into the stomach.
E) All of these are true of the stomach.

Question 8

Which of the following shows the parts of the large intestine in the proper sequence?

A) Sigmoid colon, ascending colon, descending colon, transverse colon, cecum, anal canal, rectum, anus
B) Ileum, descending colon, transverse colon, ascending,colon, rectum, sigmoid colon, anal canal, anus
C) Cecum, descending colon, transverse colon, ascending colon, sigmoid colon, rectum, anus
D) Ascending colon, transverse colon, descending colon, rectum, sigmoid colon, anal canal, anus
E) Cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum, anal canal, anus

Question 9

Which of the following organs secretes digestive enzymes to chemically break down food?

A) The stomach
B) The esophagus
C) The large intestine
D) The pharynx
E) None of these organs secretes digestive enzymes.

Question 10

Dentin forms most of a tooth, and it is the hardest substance in the body.

Question 11

What is the function of the uvula?

A) To prevent food from entering the larynx and trachea during swallowing
B) To separate the hard palate from the soft palate
C) To prevent food from entering the nasal cavity during swallowing
D) To prevent infection from entering the lungs
E) To connect the tongue to the floor of the oral cavity

Question 12

Which substance, secreted by the stomach, destroys most microorganisms that enter the body in the food, and activates pepsin?

A) Hydrochloric acid
B) Trypsin
C) Amylase
D) Intrinsic factor
E) Bicarbonate ions

Question 13

Which of the following are the minor lobes of the liver?

A) Right and left lobes
B) Quadrate and caudate lobes
C) Left and caudate lobes
D) Right and quadrate lobes
E) Left and quadrate lobes

Question 14

The enzyme produced by the salivary glands is ________; it breaks down ________.

A) amylase; starch
B) lipase; lipids
C) pepsin; proteins
D) amylase; lipids
E) pepsin; starch

Question 15

Which of the following is not absorbed by the large intestine?

A) Water
B) Glucose
C) Some vitamins made by colon bacteria
D) Electrolytes
E) All of these are absorbed by the large intestine.

Question 16

The stomach absorbs a significant amount of digested food.

Question 17

What is an accessory organ of the digestive system?

A) An organ that food passes through, but it does not secrete any digestive enzymes
B) An organ that is not necessary for the digestion process
C) An organ that contributes secretions into the alimentary canal, but food does not pass through it
D) An organ that is part of the alimentary canal
E) An organ that accomplishes mechanical digestion of food

Question 18

All of the following organs are part of the alimentary canal except the

A) pharynx.
B) pancreas.
C) large intestine.
D) mouth.
E) esophagus.

Question 19

All of the following are components of pancreatic juice except

A) enzymes that digest carbohydrates.
B) bicarbonate ions.
C) enzymes that digest proteins.
D) enzymes that digest fats.
E) bile.

Question 20

Which of the following is not true of villi?

A) They are found in the small and large intestines.
B) They are lined with simple columnar epithelium with microvilli.
C) They contain blood vessels and lacteals.
D) They are found in the mucosa.
E) All of these are true of villi.