Digestive System

Flashcard
•
Science
•
11th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an ulcer?
Back
An ulcer is a sore that forms in the wall of the stomach or intestines, often due to the erosion of the mucosal lining.
2.
FLASHCARD QUESTION
Front
What is the function of the pyloric sphincter?
Back
The pyloric sphincter controls the release of chyme from the stomach into the small intestine.
3.
FLASHCARD QUESTION
Front
What is pepsinogen?
Back
Pepsinogen is the inactive form of the enzyme pepsin, which digests proteins in the stomach.
4.
FLASHCARD QUESTION
Front
What are villi?
Back
Villi are small, finger-like projections in the small intestine that increase the surface area for digestion and absorption.
5.
FLASHCARD QUESTION
Front
What is pepsin?
Back
Pepsin is the active form of the enzyme that digests proteins, formed from pepsinogen in the acidic environment of the stomach.
6.
FLASHCARD QUESTION
Front
What is peristalsis?
Back
Peristalsis is the wave-like muscle contractions that move food through the digestive tract.
7.
FLASHCARD QUESTION
Front
What is chyme?
Back
Chyme is the semi-liquid mass of partially digested food that is expelled from the stomach into the small intestine.
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