Chapter 1
The physical blender
View / Create
Answer
Chapter 2
The chemical cauldron
View / Create
Answer
Chapter 3
The ultimate self-defense
View / Create
Answer
Chapter 4
The brain-gut hotline
View / Create
Answer
YOUR GOAL
Master of Inside the human stomach
Ch 4 · The brain-gut hotline
artiteacher The brain-gut hotline
Gut's got a brain, Vagus nerve highway, Talking up top!
Fun Fact
Serotonin source: Over 90% of your body's serotonin—the chemical that regulates mood—is produced in your gut, not your brain.
Glossary
vagus nerve (noun)
A major cranial nerve that interfaces with parasympathetic control of the heart, lungs, and digestive tract. It serves as the primary physical pathway transmitting stress signals from the brain directly to the stomach.
A major cranial nerve that interfaces with parasympathetic control of the heart, lungs, and digestive tract. It serves as the primary physical pathway transmitting stress signals from the brain directly to the stomach.
Quiz
What percentage of fibers in the vagus nerve carry signals from the gut to the brain?
Quiz
How much of the body's mood-regulating chemical serotonin is produced in the gut?