Deck 17: Digestive Glands

Question 1

Which of the following is not an accurate statement about salivary gland secretory acini?
A) Acini are surrounded by myoepithelial cells

A) Fused secretory cells form compound acini called serous demilunes
B) Mucous acini lumina have a spongy appearance
C) Serous acini secrete salivary amylase
D) Submandibular glands contain primarily mucous acini with serous demilunes

Answer 1

E

Question 2

Portal triads of the liver

A) Are found at the corners of the classic lobules
B) Drain bile from the lobules
C) Drain deoxygenated blood from the liver parenchyma
D) Supply deoxygenated blood from the hepatic portal system
E) Supply oxygenated blood to the parenchyma of the liver

Answer 2

C

Question 3

Which of the following has a mucosa that is rich in mitochondria, absorbs sodium, and is lined with columnar epithelium?
A) Anterior dorsal tongue

A) Intercalated intralobular salivary ducts
B) Interlobular salivary ducts
C) Striated intralobular salivary ducts
D) Vermilion aspect of the lips

Answer 3

D

Question 4

Which of the following is not true of salivary gland intralobular duct distribution?
A) Both intercalated and striated ducts are rare in submandibular glands

A) Mucous glands have only occasional intercalated ducts
B) Parotid glands have more striated ducts than submandibular glands
C) Striated ducts are abundant in mucous glands
D) Sublingual glands lack both striated and intercalated ducts

Question 5

Digestive enzymes such as trypsin and cholesterol esterase are secreted by the

A) Cardiac glands
B) Islets of Langerhans
C) Liver
D) Pancreatic secretory acini
E) Principal ("true") gastric glands

Question 6

Which of the following is not true of pancreatic intercalated ducts?
A) The secretory acini empty their secretions into them

A) Their initial segments are formed by centroacinar cells
B) They are lined by low columnar or cuboidal epithelium
C) They empty into interlobular ducts
D) They receive secretions from the duct of Wirsung

Question 7

Which of the following statements about classic liver lobules is incorrect?
A) Blood plasma contents can freely enter the space of Disse through the fenestrated epithelium

A) Cords of hepatocytes are separated by vascular sinusoids
B) Hepatocytes radiate outward from the portal triads
C) Kupffer cells are fixed macrophage cells attached to the epithelium
D) Liver lobules are hexagonal in shape

Question 8

Portal triads are made up of vessels carrying all of the following EXCEPT
A) Bile away from the liver cells

A) Deoxygenated blood away from the liver cells
B) Deoxygenated blood to the liver cells
C) Nutrient-rich blood to the liver cells
D) Oxygenated blood to the liver cells

Question 9

Bile moves from the ducts lined with cuboidal epithelium into the ____ duct.
A) Common bile

A) Cystic
B) Duodenal
C) Hepatic
D) Interlobular

Question 10

Which of the following is not a function of the liver?
A) Gluconeogenesis

A) Iron storage
B) Protein and lipid synthesis
C) Storage of bile
D) Toxin degradation

Question 11

Which of the following does not differentiate the gallbladder from the liver?

A) Microvilli are present on gallbladder epithelial cells
B) The gallbladder epithelium is folded
C) The muscularis mucosae of the gallbladder is thicker than that of the liver
D) There are no mucus-producing cells in the gallbladder
E) Water is reabsorbed from the bile in the gallbladder

Question 12

Sublingual glands

A) Are the largest salivary glands
B) Contain protein-rich granules
C) Contain serous but not mucous cells
D) Have a well-defined capsule
E) Have poorly developed intercalated ducts

Question 13

All of the following are found in the islets of Langerhans EXCEPT
A) Cells that secrete a bicarbonate-rich alkaline fluid

A) Cells that secrete a hormone responsible for lowering blood glucose levels
B) Cells that secrete a hormone that results in the liver's breaking down glycogen
C) Cells that stimulate glycogen synthesis
D) Insulin-secreting cells