10 Questions
Which division of the parasympathetic supply to the gut is called cranio-sacral?
Cranial outflow
Which nerve innervates the esophagus, stomach, pancreas, liver, and gallbladder with about 75% of all parasympathetic nerves fibers?
Vagus nerve (X)
Which type of fibers are cholinergic and preganglionic in the parasympathetic nervous system?
Parasympathetic fibers
Which part of the spinal cord gives rise to the sacral outflow of parasympathetic fibers?
Second, third, and fourth sacral segments
Which fibers execute the defecation reflexes and pass through the pelvic nerves to the distal half of the large intestine and all the way to the anus?
Sacral outflow fibers
Which nerve is responsible for innervating the parotid salivary gland?
Glossopharyngeal nerve (IX)
Which part of the autonomic nervous system is responsible for executing the defecation reflexes?
Parasympathetic sacral outflow
Where do about 75% of all parasympathetic nerves fibers innervate in the gastrointestinal tract?
Small intestine and proximal half of the colon
Which part of the central nervous system do parasympathetic fibers leave through to innervate submandibular and sublingual salivary glands?
Cranial nerves
Which type of fibers are cholinergic and preganglionic in the parasympathetic nervous system?
Parasympathetic fibers
Test your knowledge of the dual innervations of the intestine from the autonomic nervous system, including the parasympathetic and sympathetic branches. Learn about the divisions of parasympathetic supply to the gut and its interaction with the enteric nervous system.
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