Human Digestive System

The video explores the human digestive system, detailing how it processes food to provide nutrients. It covers the journey of food from the mouth, through the esophagus, stomach, and intestines, highlighting the roles of various organs and enzymes. The process of nutrient absorption and waste elimination is also explained.

What is the primary function of the human digestive system?

• To process ingested food into absorbable nutrients

• To circulate blood throughout the body

• To protect against infections

• To regulate body temperature

Which enzyme in saliva begins the chemical breakdown of food?

• Pepsin

• Trypsin

• Lipase

• Amylase

What is the name of the acidic liquid formed in the stomach?

• Chyme

• Bile

• Saliva

• Mucus

Which organ secretes bile to aid in fat digestion?

• Stomach

• Gallbladder

• Liver

• Pancreas

What is the main function of the large intestine?

• To produce bile

• To absorb water and form solid waste

• To secrete digestive enzymes

• To absorb nutrients