Unit 7 Respiratory System Corrections

Front

What happens to the diaphragm when you breathe in?

Back

It contracts and moves down.

Front

What is Cellular Respiration?

Back

When cells use oxygen and nutrients to make all the energy your body needs (CO2 and wastes are created).

Front

What part of blood carries hemoglobin?

Back

Red blood cells.

Front

What does bronchodilation refer to?

Back

Bronchioles opening/expanding.

Front

What happens when you exhale?

Back

The diaphragm relaxes and causes the thoracic cavity to get smaller.

Front

What is the primary function of the respiratory system?

Back

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

Front

What is the role of alveoli in the respiratory system?

Back

Alveoli are tiny air sacs where gas exchange occurs between the air and blood.

Front

What is the difference between inhalation and exhalation?

Back

Inhalation is the process of taking air into the lungs, while exhalation is the process of expelling air from the lungs.

Front

What is the significance of hemoglobin in red blood cells?

Back

Hemoglobin binds to oxygen in the lungs and carries it to tissues throughout the body.

Front

What triggers the diaphragm to contract?

Back

The diaphragm contracts in response to signals from the brain when the body needs to inhale.