digestive sys Flashcards
(27 cards)
What is the primary function of the digestive system?
To break down food into nutrients that can be absorbed by the body.
True or False: The mouth is the starting point of the digestive process.
True
What enzyme in saliva begins the digestion of carbohydrates?
Amylase
Fill in the blank: The _____ is a muscular tube that connects the throat to the stomach.
esophagus
What is the role of the stomach in digestion?
To mix food with gastric juices and break it down into a semi-liquid form.
Multiple Choice: Which organ is primarily responsible for nutrient absorption?
Small intestine
What are the three main sections of the small intestine?
Duodenum, jejunum, ileum
True or False: The liver produces bile.
True
What is the function of bile in digestion?
To emulsify fats, making them easier to digest.
Fill in the blank: The _____ absorbs water and forms feces.
large intestine
What is the role of the pancreas in the digestive system?
To produce digestive enzymes and bicarbonate to neutralize stomach acid.
Multiple Choice: Which structure prevents food from entering the windpipe?
Epiglottis
What is peristalsis?
The wave-like muscle contractions that move food through the digestive tract.
True or False: Digestion begins in the stomach.
False
Fill in the blank: The _____ is the final part of the digestive system.
rectum
What are villi, and what is their function?
Villi are small, finger-like projections in the small intestine that increase surface area for absorption.
Multiple Choice: Which of the following is NOT a part of the digestive system?
Lungs
What is the role of digestive enzymes?
To break down complex molecules into simpler ones for absorption.
True or False: The gallbladder stores bile.
True
What is the main function of the esophagus?
To transport food from the mouth to the stomach.
Fill in the blank: The _____ secretes hormones that regulate blood sugar levels.
pancreas
What is the function of the salivary glands?
To produce saliva, which contains enzymes that begin the digestion of food.
Multiple Choice: Which vitamin is produced by bacteria in the large intestine?
Vitamin K
What is the significance of the enteric nervous system?
It controls the function of the gastrointestinal system independently of the central nervous system.
