Digestive and Respiratory System Flashcard

Front

What is the site of gas exchange in the lungs?

Back

Alveoli

Front

When you breathe, what gas do your lungs take in and what gas do they remove?

Back

Oxygen (in) / Carbon Dioxide (out)

Front

What is the main organ responsible for breathing?

Back

The Lungs

Front

What is the physical breakdown of food called?

Back

Mechanical Digestion

Front

What is the main function of villi in the digestive system?

Back

They absorb nutrients into the bloodstream.

Front

What is the process by which food is chemically broken down in the stomach?

Back

Chemical Digestion

Front

What is the tube that connects the throat to the stomach?

Back

Esophagus

Front

What is the role of the diaphragm in respiration?

Back

It contracts and relaxes to help draw air into the lungs.

Front

What is the function of the bronchi in the respiratory system?

Back

They carry air from the trachea to the lungs.

Front

What is the purpose of the small intestine in digestion?

Back

It is where most nutrient absorption occurs.