A&P Upper Digestive System High School

Front

What are the two teeth just lateral to the four front middle teeth called?

Back

Cuspids (canines)

Front

How many adult teeth does a typical human have?

Back

32

Front

Which sphincter keeps food and stomach acid from leaving your stomach and going back up your esophagus to your mouth?

Back

Lower esophageal sphincter

Front

What are the four front middle teeth called?

Back

Incisors

Front

Which structure is labeled C?

Back

Uvula

Front

What is the primary function of incisors?

Back

To cut food.

Front

What is the role of canines in the digestive system?

Back

To tear food.

Front

What is the function of the hard palate?

Back

To form the roof of the mouth and separate the oral cavity from the nasal cavity.

Front

What is the function of the soft palate?

Back

To close off the nasal passages during swallowing.

Front

What is the purpose of the uvula?

Back

To help prevent food from entering the nasal cavity during swallowing.