Podcast
Questions and Answers
Which part of the digestive tube contains the submucous plexus?
Which part of the digestive tube contains the submucous plexus?
- Tunica Mucosa (correct)
- Muscularis
- Tunica muscularis
- Tunica submucosa
What is the main function of the Tunica Mucosa in the digestive tube?
What is the main function of the Tunica Mucosa in the digestive tube?
- Contraction
- Secretion (correct)
- Excretion
- Absorption
Which part of the small intestine features circular folds known as 'Plicae circulares'?
Which part of the small intestine features circular folds known as 'Plicae circulares'?
- Colon
- Ileum
- Duodenum
- Jejunum (correct)
What is the role of the ileocecal valve in the digestive system?
What is the role of the ileocecal valve in the digestive system?
Which part of the colon extends from the iliac crest down to form an 'S-shaped' structure?
Which part of the colon extends from the iliac crest down to form an 'S-shaped' structure?
What is the function of Villi in the small intestine?
What is the function of Villi in the small intestine?
What is the function of vasoactive intestinal peptide (VIP) in the gastrointestinal system?
What is the function of vasoactive intestinal peptide (VIP) in the gastrointestinal system?
What effect does entry of calcium ions have on smooth muscle contraction?
What effect does entry of calcium ions have on smooth muscle contraction?
How do slow waves impact ion entry in smooth muscle fibers?
How do slow waves impact ion entry in smooth muscle fibers?
Why is the enteric nervous system (ENS) sometimes referred to as the 'little brain'?
Why is the enteric nervous system (ENS) sometimes referred to as the 'little brain'?
Which innervation increases activity of intestinal smooth muscle in the gastrointestinal system?
Which innervation increases activity of intestinal smooth muscle in the gastrointestinal system?
What is the function of the myenteric plexus within the enteric nervous system?
What is the function of the myenteric plexus within the enteric nervous system?
What is the primary function of the stomach?
What is the primary function of the stomach?
Which structure is located at the junction between the stomach and the duodenum?
Which structure is located at the junction between the stomach and the duodenum?
Which part of the small intestine is primarily responsible for nutrient absorption?
Which part of the small intestine is primarily responsible for nutrient absorption?
What is the primary function of the cecum?
What is the primary function of the cecum?
Which part of the gastrointestinal tract is supplied primarily by the celiac artery?
Which part of the gastrointestinal tract is supplied primarily by the celiac artery?
Which vein drains the midgut region of the gastrointestinal tract?
Which vein drains the midgut region of the gastrointestinal tract?
Which region of the gastrointestinal tract is supplied by the inferior mesenteric artery?
Which region of the gastrointestinal tract is supplied by the inferior mesenteric artery?
Which part of the stomach is located closest to the heart?
Which part of the stomach is located closest to the heart?
Which part of the small intestine is retroperitoneal (located behind the peritoneum)?
Which part of the small intestine is retroperitoneal (located behind the peritoneum)?
What is the primary function of the anal canal?
What is the primary function of the anal canal?
Which of the following statements about the enteric nervous system (ENS) is correct?
Which of the following statements about the enteric nervous system (ENS) is correct?
Which of the following plexuses is primarily responsible for stimulating gastrointestinal motility?
Which of the following plexuses is primarily responsible for stimulating gastrointestinal motility?
Which of the following spinal cord segments provide sympathetic innervation to the hindgut?
Which of the following spinal cord segments provide sympathetic innervation to the hindgut?
Which of the following neurotransmitters is released by the parasympathetic nervous system to stimulate gastrointestinal motility and secretion?
Which of the following neurotransmitters is released by the parasympathetic nervous system to stimulate gastrointestinal motility and secretion?
Which of the following statements about the sympathetic nervous system's effects on the gastrointestinal tract is correct?
Which of the following statements about the sympathetic nervous system's effects on the gastrointestinal tract is correct?
What is the primary function of the gut-brain axis?
What is the primary function of the gut-brain axis?
Which of the following is a common complication of poorly controlled diabetes mellitus?
Which of the following is a common complication of poorly controlled diabetes mellitus?
Which gastrointestinal hormone is released from the duodenal mucosa in response to the presence of fat, carbohydrate, or protein in the duodenum?
Which gastrointestinal hormone is released from the duodenal mucosa in response to the presence of fat, carbohydrate, or protein in the duodenum?
What is the primary function of the interstitial cells of Cajal?
What is the primary function of the interstitial cells of Cajal?
Which of the following parts of the gastrointestinal tract is responsible for the greatest amount of water absorption or excretion?
Which of the following parts of the gastrointestinal tract is responsible for the greatest amount of water absorption or excretion?
Which of the following is a part of the large intestine?
Which of the following is a part of the large intestine?
Which of the following is a temporary cessation of gut motility, often related to surgery or electrolyte imbalance?
Which of the following is a temporary cessation of gut motility, often related to surgery or electrolyte imbalance?
The ENS (enteric nervous system) is composed of neurons, ganglia, and fibers in a network.
The ENS (enteric nervous system) is composed of neurons, ganglia, and fibers in a network.
The myenteric plexus is mainly located between circular smooth muscle and submucosa of the small and large intestines.
The myenteric plexus is mainly located between circular smooth muscle and submucosa of the small and large intestines.
Sacral parasympathetic preganglionic neurons arise from S2 to S4 spinal segments and innervate neuron cell bodies located in the myenteric plexus.
Sacral parasympathetic preganglionic neurons arise from S2 to S4 spinal segments and innervate neuron cell bodies located in the myenteric plexus.
Acetylcholine is the inhibitory neurotransmitter in the enteric nervous system.
Acetylcholine is the inhibitory neurotransmitter in the enteric nervous system.
Sympathetic preganglionic neurons that inhibit motility and secretion arise from T5 to L2 spinal cord segments.
Sympathetic preganglionic neurons that inhibit motility and secretion arise from T5 to L2 spinal cord segments.
The neurotransmitter norepinephrine excites intestinal smooth muscle.
The neurotransmitter norepinephrine excites intestinal smooth muscle.
The gut-brain axis coordinates reflexes between the ENS and CNS.
The gut-brain axis coordinates reflexes between the ENS and CNS.
There are four types of GI reflexes identified within the ENS.
There are four types of GI reflexes identified within the ENS.
The parasympathetic nervous system stimulates motility and secretion in the gastrointestinal tract.
The parasympathetic nervous system stimulates motility and secretion in the gastrointestinal tract.
The sympathetic nervous system maintains muscular tone of sphincters in the gastrointestinal tract.
The sympathetic nervous system maintains muscular tone of sphincters in the gastrointestinal tract.
