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Questions and Answers
What is the function of the tunica serosa in the stomach?
What is the function of the tunica serosa in the stomach?
- Creates haustra in the large intestine
- Forms greater and lesser omenta (correct)
- Forms mesenteries attaching organs to the posterior abdominal wall
- Contains white fibrous connective tissue connecting esophagus to mediastinal structures
Which part of the esophagus contains a combination of skeletal and smooth muscle?
Which part of the esophagus contains a combination of skeletal and smooth muscle?
- Lower 1/3
- Entire esophagus
- Upper 1/3
- Middle 1/3 (correct)
What is unique about the muscular layers of the stomach?
What is unique about the muscular layers of the stomach?
- They contain both skeletal and smooth muscle
- They have an outer layer that is circular
- They contract behind the food bolus
- They have an inner layer that is oblique (correct)
What forms the haustra in the large intestine?
What forms the haustra in the large intestine?
What is the function of the tunica submucosa?
What is the function of the tunica submucosa?
Which part of the small intestine contracts behind the food bolus?
Which part of the small intestine contracts behind the food bolus?
Which part of the gastrointestinal tract is responsible for the chemical breakdown of materials by acid and enzymes?
Which part of the gastrointestinal tract is responsible for the chemical breakdown of materials by acid and enzymes?
What is the primary arterial supply during embryonic development for the Foregut region of the GI system?
What is the primary arterial supply during embryonic development for the Foregut region of the GI system?
Which structure is NOT part of the large intestine?
Which structure is NOT part of the large intestine?
Where does most absorption take place in the small intestine?
Where does most absorption take place in the small intestine?
Which region of the gut tube extends from the distal half of the duodenum to the splenic flexure of the colon?
Which region of the gut tube extends from the distal half of the duodenum to the splenic flexure of the colon?
Where is the pyloric sphincter located?
Where is the pyloric sphincter located?
What is the function of VIP in the gastrointestinal system?
What is the function of VIP in the gastrointestinal system?
Which ions enter the smooth muscle fibers upon slow waves?
Which ions enter the smooth muscle fibers upon slow waves?
What is the nickname given to the Enteric Nervous System (ENS)?
What is the nickname given to the Enteric Nervous System (ENS)?
What effect does sympathetic activity have on intestinal smooth muscle?
What effect does sympathetic activity have on intestinal smooth muscle?
Which plexus is responsible for controlling local intestinal secretion and absorption?
Which plexus is responsible for controlling local intestinal secretion and absorption?
Where do sensory fibers pass from before reaching the enteric plexuses and prevertebral ganglia?
Where do sensory fibers pass from before reaching the enteric plexuses and prevertebral ganglia?
Which neurotransmitter is responsible for inhibiting intestinal tract smooth muscle?
Which neurotransmitter is responsible for inhibiting intestinal tract smooth muscle?
Which plexus is mainly responsible for stimulating gland secretions and contraction of the muscularis mucosae in the intestines?
Which plexus is mainly responsible for stimulating gland secretions and contraction of the muscularis mucosae in the intestines?
Which part of the spinal cord do parasympathetic preganglionic neurons for the hindgut arise from?
Which part of the spinal cord do parasympathetic preganglionic neurons for the hindgut arise from?
Where do sympathetic postganglionic neurons terminate in the enteric nervous system?
Where do sympathetic postganglionic neurons terminate in the enteric nervous system?
Which part of the gut is mainly innervated by sacral parasympathetic preganglionic neurons?
Which part of the gut is mainly innervated by sacral parasympathetic preganglionic neurons?
Where does water absorption occur in the gastrointestinal tract, from the greatest to the smallest amount?
Where does water absorption occur in the gastrointestinal tract, from the greatest to the smallest amount?
Which hormone is released from the duodenal mucosa in response to the presence of fat, carbohydrate, or protein in the duodenum postprandially?
Which hormone is released from the duodenal mucosa in response to the presence of fat, carbohydrate, or protein in the duodenum postprandially?
Which part of the gastrointestinal structure includes the cecum?
Which part of the gastrointestinal structure includes the cecum?
What is the function of the interstitial cells of Cajal?
What is the function of the interstitial cells of Cajal?
Which condition is characterized by significantly delayed gastric emptying and is a common complication of poorly controlled diabetes mellitus?
Which condition is characterized by significantly delayed gastric emptying and is a common complication of poorly controlled diabetes mellitus?
What are the typical signs and symptoms associated with paralytic ileus?
What are the typical signs and symptoms associated with paralytic ileus?
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