24 Questions
What is the primary function of the parasympathetic inputs to the gut?
Stimulate digestion
What is the significance of the hepatic portal circulation in relation to the digestive system?
It carries absorbed nutrients from the GI tract to the liver.
Which nerve plexus is responsible for controlling glands and smooth muscles in the gastrointestinal (GI) tract?
Myenteric nerve plexus
Which of the following represents a retroperitoneal organ in the digestive system?
Pancreas
How are short reflexes in the enteric nervous system different from long reflexes?
Short reflexes involve the autonomic nervous system (ANS).
What is the function of the mesentery in the digestive system?
Support and stabilize the intestines
What is the role of the vagus nerve in swallowing?
Involuntary phase of swallowing involving vagus nerve
Which organ is not a part of the alimentary canal in the digestive system?
Liver
What is a potential effect of PNS activation by chemo- and mechanoreceptors on salivary glands?
Stimulation of saliva production
What is the primary function of the sublingual gland in the digestive system?
Chemical digestion
What is the function of the parietal peritoneum in the abdominal cavity?
Lines the body wall
Which part of the gastrointestinal tract is responsible for absorption from the lumen into blood or lymph?
Jejunum
What is the role of the myenteric nerve plexus in controlling GI tract motility?
Coordinates long reflexes involving the autonomic nervous system
What characterizes retroperitoneal organs in relation to the digestive system?
They are outside the peritoneal membrane lining the abdominal cavity
What is the function of the cardiac sphincter in the digestive system?
Prevent reflux of stomach contents into the esophagus
What is the primary purpose of salivation triggered by parasympathetic activation?
Lubricate food for easier swallowing
How does the intrinsic factor secreted by the stomach play a crucial role in the body?
Enhances the absorption of vitamin B12 in the small intestine
How do hormones from the stomach and small intestine affect digestive processes?
Promote secretion of digestive enzymes from pancreatic cells
Which structure plays a significant role in initiating swallowing, speech, and taste?
Vallate papilla
What is the function of filiform papillae on the tongue's surface?
Enhance friction and grip when moving food around
Which gland produces a watery secretion that cleanses the mouth and aids in solvent action?
Parotid gland
What type of teeth are characterized by broad crowns with rounded cusps used for grinding or crushing food?
(Bicuspids) Premolars
What is the main function of saliva produced by salivary glands throughout the mouth?
Moisten and cleanse oral cavity structures
How does the muscularis externa layer of the stomach contribute to its digestive function?
Mixes food with gastric juices through peristaltic contractions
Test your knowledge on the respiratory system with this quiz covering the mouth, salivary glands, esophagus, stomach, pancreas, liver, and more. Topics include the organs of the alimentary canal, like the small intestine and large intestine. Perfect for students studying anatomy and physiology.
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