Front

What is the diaphragm?

Back

The diaphragm is a thin skeletal muscle that sits at the base of the chest, separating the abdomen from the chest. It contracts and flattens when you inhale.

Front

What gases are exchanged during breathing?

Back

During breathing, the lungs take in oxygen and remove carbon dioxide.

Front

What do the divisions of the trachea form?

Back

The divisions of the trachea form the main bronchi.

Front

What happens to the diaphragm when you breathe in?

Back

When you breathe in, the diaphragm flattens out, creating more space for air.

Front

What component of blood carries oxygen and carbon dioxide?

Back

Red Blood Cells carry oxygen (O2) and carbon dioxide (CO2) throughout the body.

Front

What is the function of the intercostal muscles?

Back

The intercostal muscles assist in the breathing process by expanding and contracting the rib cage.

Front

What is the role of the epiglottis?

Back

The epiglottis is a flap of tissue that covers the trachea during swallowing to prevent food from entering the airway.

Front

What are alveoli?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the blood and carbon dioxide to be removed.

Front

What is the primary function of the respiratory system?

Back

The primary function of the respiratory system is to facilitate the exchange of gases (oxygen and carbon dioxide) between the body and the environment.

Front

What is the pathway of air during inhalation?

Back

Air enters through the nose or mouth, travels down the trachea, branches into the bronchi, and reaches the alveoli.