Figueroa: The Digestive System

What is the function of the mouth in the digestive system?

• Storing excess water from food

• Absorbing nutrients directly into the bloodstream

• Chewing and mixing food with saliva

• Producing bile for fat digestion

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This organ produces acid that aids in digestion.

• Esophagus

• Stomach

• Large intestine

• Gallbladder

In which part of the digestive system does the majority of nutrient absorption take place?

• Small intestine

• Stomach

• Large intestine

• Esophagus

Which of the following is a primary function of the large intestine?

• Breaking down nutrients from food

• Producing hormones that regulate metabolism

• Absorbing water and salts, and preparing waste for elimination

• Secreting enzymes for digestion

How do the villi in the small intestine assist in the digestive process?

• By secreting digestive enzymes

• By increasing the area for nutrient absorption

• By producing hormones that regulate digestion

• By filtering toxins from the food

The chewing and grinding of food into smaller pieces is an example of...

• Mechanical Digestion
• Chemical Digestion

Why doesn't the stomach digest itself with hydrochloric acid?

• It is lined with villi to protect the lining of the stomach

• the lining is covered with mucus to protect itself

• the stomach wall becomes immune to the strong acid over time

• the stomach walls are made of very thick skeletal muscle.

Which example best shows structures that make up the digestive system in the human body?  

• A) A heart, blood, vessels
•  B) nose, trachea, lungs
• C) brain, spinal cord, nerves
• D) esophagus, stomach, intestines 

Place the following events in sequence: A) Food enters your large intestine; B) Food enters your small intestine; C) Food enters your esophagus

• A, B, C

• C, B, A

• C, A, B

• B, A, C

The digestive process starts in the:

• Stomach

• Esophagus

• Mouth

• Bathroom