Digestive System Functions and Processes

The video explores the journey of food through the digestive system, starting from the mouth where chewing and saliva begin the process. It then moves through the esophagus to the stomach, where gastric juices break down food further. The small intestine absorbs nutrients with the help of villi, while intestinal bacteria aid digestion. Finally, the large intestine reabsorbs water and expels waste. The entire process takes 48 to 72 hours.

What triggers the appetite and desire to eat?

• Hearing and taste

• Sight and smell

• Hearing and touch

• Taste and touch

Which muscles are the strongest in the body?

• Biceps

• Triceps

• Masseters

• Quadriceps

What is the role of the tongue during chewing?

• To taste the food

• To swallow the food

• To guide food for grinding

• To produce saliva

How many types of muscles are involved in the esophagus movement?

• 15

• 25

• 20

• 10

What is the function of gastric juice?

• To cool the food

• To absorb nutrients

• To digest food and fight bacteria

• To sweeten the food

What is the size of food particles after digestion in the stomach?

• 2 millimeters

• 1 millimeter

• 0.2 millimeters

• 0.5 millimeters

What is the surface area of the small intestine when stretched out?

• A swimming pool

• A football field

• A basketball court

• A tennis court

What is the role of intestinal microbiota?

• To produce saliva

• To digest substances we cannot

• To produce gastric juice

• To absorb water

What is reabsorbed in the large intestine?

• Proteins

• Carbohydrates

• Fats

• Water

How long does the entire digestive process take?

• 12 to 24 hours

• 24 to 48 hours

• 72 to 96 hours

• 48 to 72 hours