Front

What structure closes off the larynx during swallowing?

Back

Epiglottis

Front

What is the primary function of the stomach?

Back

To digest food and mix it with gastric juices.

Front

What is the first part of the digestive system?

Back

Mouth

Front

Does inspired air contain more oxygen than expired air?

Back

True

Front

What are the air sacs in the lungs where gas exchange occurs?

Back

Alveoli

Front

What is the function of the esophagus?

Back

To transport food from the mouth to the stomach.

Front

What is the role of the diaphragm in respiration?

Back

To help expand and contract the lungs during breathing.

Front

What is the main purpose of the respiratory system?

Back

To facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

Front

What is the difference between the small intestine and the large intestine?

Back

The small intestine absorbs nutrients, while the large intestine absorbs water and forms waste.

Front

What is the function of bronchi in the respiratory system?

Back

To carry air from the trachea to the lungs.