Digestive System Quiz

What is the function of the oral cavity in the digestive system?

• It regulates the entry of the bolus into the stomach.

• It is responsible for the physical breakdown of food to increase its surface area for chemical digestion.

• It is the passageway shared by both food and air.

• It serves as an entranceway for food and where food is held for initial mechanical digestion.

Which digestive structure is responsible for the physical breakdown (mechanical digestion) of food to increase its surface area for chemical digestion?

• Epiglottis

• Teeth

• Salivary gland

• Stomach

What are the functions of the salivary gland?

• To block the opening to the nasal passages during swallowing.

• To carry the bolus of food from the pharynx to the stomach.

• To produce saliva which moistens and dissolves food, initiates carbohydrate digestion, and neutralizes acidic foods.

• To regulate the release of the chyme from the stomach into the duodenum.

Which structure is known as the "throat" in the digestive system?

• Oral cavity

• Esophagus

• Pharynx

• Stomach

What is the function of the liver as described in the document?

• It stores bile and contracts in response to the presence of CCK.

• It produces bile to help break down lipids into smaller droplets called micelles.

• It is responsible for storing food waste and reabsorbing water.

• It regulates the release of feces from the rectum to the outside.

What is the role of the jejunum in the digestive system?

• It is the last part of the large intestine which stores feces.

• It is a vestigial structure that no longer plays a vital role in humans.

• It is the second part of the small intestines where some digestion finishes off and absorption of nutrients begins.

• It is responsible for storing food waste and reabsorbing water from food waste.

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

• Mechanical (Physical) Digestion

• Chemical Digestion

Enzymes and acids are examples of 

• mechanical digestion
• chemical digestion

What are the functions of the digestive system?

• ingestion, digestion, absorption, elimination

• ingestion, congestion, elimination

• congestion, digestion, elimination

Where does most absorption of nutrients take place?

• Stomach

• Small intestine

• Large intestine

• Gall bladder