18 Questions
What is the role of peristaltic movements in the digestive system?
Help push food forward along the digestive tube
What is the function of hydrochloric acid in the stomach during digestion?
Break down proteins with the help of pepsin
How does the mucus in the stomach contribute to digestion?
Protects the stomach lining from acid damage
What controls the exit of food from the stomach into the small intestine?
Sphincter muscle
In what organ does digestion primarily occur through the action of gastric glands?
Stomach
How does food move from the mouth to the stomach?
Through peristaltic movements
What is the main function of the small intestine?
Absorption of nutrients
Why do herbivores need a longer small intestine compared to carnivores?
To allow the digestion of cellulose in grass
How does the presence of villi in the small intestine benefit the process of absorption?
Increase the surface area for absorption
What is the role of bile salts in the small intestine?
Break down fats into smaller globules
What happens to unabsorbed food in the large intestine?
Excreted as waste material
Which organ secretes pancreatic juice containing enzymes for digesting proteins and fats?
Pancreas
What is the function of dental plaque in the context of tooth decay?
Causes demineralization of enamel
What do the walls of the small intestine contain that secrete intestinal juice?
Glands
How does the anal sphincter control the passage of waste material out of the body?
Regulates the exit of waste material via the anus
Why is it challenging for enzymes to act on fats present in the small intestine?
Fats are present in large globules
What role do blood vessels play in the process of nutrient absorption in the small intestine?
Transport absorbed food to body cells
How does dental caries start and progress in teeth?
By gradual softening of enamel and dentine
Test your knowledge on the process of food digestion from the mouth to the stomach. Learn about the role of saliva, tongue, muscles, and peristalsis in moving food through the digestive system.
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