Digestive System Practice - Assignment #13 Flashcards
Which selection includes only accessory digestive organs?
Question 1 options:
salivary glands, thyroid gland, pancreas, liver
stomach, duodenum, pancreas, gallbladder
gallbladder, liver, pancreas, salivary glands
liver, thyroid gland, gallbladder, spleen
Question 2 (0.25 points)
gallbladder, liver, pancreas, salivary glands
Which sequence below represents the correct layering of the wall of the GI tract, starting from the layer next to the lumen?
Question 2 options:
Mucosa, muscularis externa, submucosa, serosa
Muscularis externa, serosa, submucosa, mucosa
Mucosa, submucosa, muscularis externa, serosa
Submucosa, mucosa, muscularis externa, serosa
Mucosa, submucosa, muscularis externa, serosa
During deglutition, the bolus passes into the stomach from the esophagus through the __________.
Question 3 options:
pyloric sphincter
ileocecal valve
esophageal sphincter
gastroesophageal sphincter
gastroesophageal sphincter
During the intestinal phase of gastric regulation, __________.
Question 4 options:
the enterogastric reflex is turned off
the stomach is initially stimulated and later inhibited
secretin causes more HCl release
hormones reduce chief cell activity
the stomach is initially stimulated and later inhibited
What intestinal structure(s) consist(s) of protective aggregated nodules of lymphocytes and macrophages?
Question 5 options:
the intestinal crypts
the gastric pits
Peyer’s patches
the muscularis mucosae
Peyer’s patches
What are the main organic molecules digested in the stomach?
Question 6 options:
proteins
nucleic acids
carbohydrates
fats
proteins
The main propulsive force that occurs in the majority of the alimentary canal is called __________.
Question 7 options:
segmentation
peristalsis
ingestion
motility
peristalsis
Which regulatory chemical stimulates gastric gland activity and motility?
Question 8 options:
secretin
gastrin
CCK
histamine
gastrin
Match the following term with its correct description: Same structure as the visceral peritoneum.
Question 9 options:
Serosa
Submucosa
Muscularis
mucosa
Question 9 options:
Serosa
What substances from different organs would mix together at the hepatopancreatic ampulla?
Question 10 options:
brush border enzymes and intrinsic factor
bile and pancreatic enzymes
HCl and pepsin
secretin and CCK
bile and pancreatic enzymes
Which of the following products does the stomach produce?
Question 11 options:
HCl and intrinsic factor
pepsinogen and secretin
bile and trypsin
mucus and amylase
HCl and intrinsic factor
- Which of the following cells produce HCl?
- Which of the following cells produce pepsinogen?
- The short reflexes in the digestive system are stimulated by __________.
- The only stomach function that is essential to life is __________.
- Main site of nutrient absorption
- Responsible for segmentation and peristalsis
1parietal cells
4
the secretion of intrinsic factor
3
the enteric nerve plexuses
5
mucosa
2
chief Cells
6
Muscularis external
.
Emulsification of which organic molecules would be most affected if the liver were severely damaged?
Question 13 options:
carbohydrates
proteins
lipids
nucleic acids
lipids
Which of the following statements about the mesentery is INCORRECT?
Question 14 options:
It is composed of a layer of serous membrane fused with a layer of mucous membrane.
Omenta is the special name for part of the mesentery extending from the curvatures of the stomach.
It provides a route for blood vessels, lymphatics, and nerves to reach the digestive viscera.
It holds the organs of the abdomen in place.
It is composed of a layer of serous membrane fused with a layer of mucous membrane.
Some aspects of the __________ phase of gastric secretion, which occur before food enters the stomach, may be considered conditioned reflexes.
Question 15 options:
cephalic
gastric
esophageal
intestinal
Question 15 options:
cephalic
The myenteric nerve plexus is located in which tunic of the alimentary canal?
Question 16 options:
submucosa
mucosa
serosa
muscularis externa
muscularis externa
Which of the following is a function of the gallbladder?
Question 17 options:
metabolizing carbohydrate
converting pepsinogen to pepsin
storing and concentrating bile
secreting pancreatic juice
storing and concentrating bile
he three pairs of multicellular salivary glands that secrete into the oral cavity are the ____________ glands.
Question 18 options:
parotid, submandibular, and sublingual
palatine, lingual, and pharyngeal
serous, mucous, and mixed
serous, sublingual, parotid
Question 19 (0.5 points)
Question 18 options:
parotid, submandibular, and sublingual
In which of the following selections are the GI tract organs or regions correctly matched with the type of epithelium that lines them?
Question 19 options:
oral cavity and esophagus; stratified cuboida
stomach and small intestine; stratified squamous
cecum, colon, and stomach; simple columnar
cecum, colon, and stomach; simple columnar
What are the three phases of the swallowing process?
Question 20 options:
oral, cranial, and pharyngeal
voluntary, pharyngeal, and esophageal
cardiac, gastric, and pyloric
mastication, eruption, and dentition
voluntary, pharyngeal, and esophageal
Which list proceeds from the superior to the inferior end of the stomach?
Question 21 options:
pylorus, fundus, cardia, body
cardia, body, fundus, pylorus
cardia, fundus, body, pylorus
body, cardia, pylorus, fundus
cardia, fundus, body, pylorus
- Inhibits gastric gland secretions and stimulates the release of bicarbonate-rich pancreatic juice
- Stimulated by partially digested proteins in the stomach and increases gastric gland secretions
- Increases the secretions of enzyme-rich pancreatic juice
- activates parietal cells to release HCL
- Inhibits gastric secretions, secretin, contraction, and bile release
Question 22 options:
3
CCK
4
Histamine
5
Somatostatin
1
Secretin
2
Gastrin
