Connect Ch. 24 Flashcards
Which of the following is not an accessory organs of the digestive system?
Tongue
Liver
Pancreas
Salivary glands
Spleen
Spleen
The tissue layer between the muscularis mucosae and muscularis externa of the digestive tract is the __________.
mucosa
lamina propria
submucosa
serosa
adventitia
submucosa
Involuntary muscle contractions that move contents through the gastrointestinal tract are called __________.
mastication
peristalsis
defecation
chyme
peristalsis
Hydrochloric acid is secreted in the __________.
esophagus
stomach
small intestine
large intestine
stomach
Most nutrient absorption occurs in the __________.
esophagus
stomach
small intestine
large intestine
small intestine
Which of the following organs produces bile?
Liver
Small intestine
Pancreas
Stomach
Gallbladder
Liver
Which of the following lists puts the major organs of the gastrointestinal tract in the correct order regarding the direction that digestive contents are moved?
Esophagus, stomach, large intestine, small intestine, mouth
Mouth, stomach, esophagus, large intestine, small intestine
Mouth, small intestine, stomach, esophagus, large intestine
Mouth, esophagus, stomach, small intestine, large intestine
Mouth, esophagus, stomach, small intestine, large intestine
Which of the following tissue types contributes to the mucosa of the esophagus?
Nonkeratinized stratified squamous epithelium
Simple squamous epithelium
Stratified columnar epithelium
Simple columnar epithelium
Keratinized stratified squamous epithelium
Nonkeratinized stratified squamous epithelium
The fundus of the stomach is the _________.
domed superior portion
large main portion
narrow ending portion
portion adjacent to the distal portion of the lesser curvature
domed superior portion
With increasing age, the gastric mucosa secretes less __________ which then reduces the absorption of calcium, iron, zinc, and folic acid.
acid
intrinsic factor
secretin
gastrin
acid
Which flexure is found between the ascending and transverse colon?
Right colic
Left colic
Splenic
Pancreatic
Right colic
Bile canaliculi are located __________.
between plates of hepatocytes in lobules
within hepatic triads between lobules
draining the liver to form bile ducts
draining the gall bladder
between plates of hepatocytes in lobules
What is the duct segment formed when the bile duct and pancreatic duct merge?
Hepatopancreatic ampulla
Duodenal ampulla
Hepatocystic duct
Panhepatic duct
Hepatopancreatic ampulla
Which of the following is not an accessory organ of digestion?
Salivary glands
Liver
Tongue
Spleen
Pancreas
Spleen
Which of the following is a serous membrane that extends from the lesser curvature of the stomach to the liver?
Falciform ligament
Mesentery
Lesser omentum
Greater omentum
Mesocolon
Lesser omentum
Which of the following is responsible for peristalsis?
Mesothelium
Muscularis mucosae
Muscularis externa
Pharyngeal constrictors
Gastric rugae
Muscularis externa
Which of the following is not found in saliva?
Lysosyme
Water
Pepsinogen
Mucus
Amylase
Pepsinogen
Which of the following tissues lines the oral cavity?
Simple squamous epithelium
Simple columnar epithelium
Ciliated pseudostratified columnar epithelium
Stratified squamous epithelium
Simple cuboidal epithelium
Stratified squamous epithelium
Why can one say that chemical digestion begins in the mouth?
The saliva contains mucus.
The teeth grind food to expose surface area for enzymatic action.
The saliva contains amylase and lipase.
The saliva contains lysozyme.
The saliva contains electrolytes.
The saliva contains amylase and lipase.
Which of the following cells secrete gastrin?
Chief cells
Mucous cells
Parietal cells
Enteroendocrine cells
Regenerative cells
Enteroendocrine cells
Which of the following is a function of the stomach?
It churns food into a paste by mechanical means.
It digests lipids.
Most chemical digestion takes place in the stomach.
It absorbs most of the nutrients in food.
It stores food in the form of fat.
It churns food into a paste by mechanical means.
Which of the following regulates the flow of contents from the stomach to the duodenum?
Ileal papilla
Pyloric sphincter
Cardiac sphincter
Gastric rugae
Esophageal sphincter
Pyloric sphincter
Which of the following nutrients is absorbed by the lacteals of the small intestine?
Triglycerides
Water-soluble vitamins
Amino acids
Glucose
Minerals
Triglycerides
Which of the following does not contribute to the large surface area available for nutrient absorption in the small intestine?
Rugae
Villi
Microvilli
Intestinal length
Circular folds
Rugae