Anatomy of the Respiratory System
Functions of the Respiratory System
Breathing Mechanism
Respiratory Structures
Respiratory Diseases
100

This part of the respiratory system filters, warms, and moistens the air as it enters the body.

What is the nose (or nasal cavity)?

100

This process brings oxygen into the body and removes carbon dioxide.

What is breathing (ventilation)?

100

This term refers to the process of taking air into the lungs.

What is inhalation?

100

This small structure within the larynx vibrates to produce sound during speech.

What are the vocal cords (or vocal folds)?

100

This common condition causes inflammation of the bronchi, leading to coughing and shortness of breath.

What is bronchitis?

200

These tubes carry air from the trachea into each lung.

What are the bronchi?

200

The gas that is released during the respiratory process after oxygen is inhaled and the gas exchange has occurred. 

What is carbon dioxide?

200

This process occurs when the diaphragm relaxes, allowing the lungs to expel air.

What is exhalation?

200

These are the small branches that extend from the bronchi and end in the alveolar sacs.

What are bronchioles?

200

This chronic condition involves narrowing of the airways and difficulty breathing, often triggered by allergens or exercise.

What is asthma?

300

This structure contains the vocal cords and plays a key role in producing sound.

What is the larynx?

300

This function of the respiratory system occurs when oxygen from the alveoli moves into the bloodstream, and carbon dioxide moves from the blood into the alveoli.

What is gas exchange?

300

The pressure in the lungs drops below atmospheric pressure during this process, allowing air to rush into the lungs.

What is inhalation (inspiration)?

300

This protective lining surrounds the lungs and reduces friction during breathing.

What is the pleura?

300

This disease causes the destruction of alveolar walls, leading to difficulty in oxygen exchange.

What is emphysema?

400

This dome-shaped muscle plays a crucial role in the process of breathing by contracting and relaxing.

What is the diaphragm?

400

This process that provides oxygen to the cells and removes carbon dioxide. 

What is the respiratory system?

400

The exchange of gases in the body that occurs in the tissues is known as this.

What is internal respiration?

400

The tiny hairs down the windpipe that move gently to keep mucus and dirt out of the lungs.

What is cilia?

400

This infectious disease primarily affects the lungs and causes persistent cough, chest pain, and weight loss.

What is tuberculosis?

500

These tiny air sacs in the lungs are where gas exchange occurs.

What are alveoli?

500

In the lower respiratory tract, the lungs are separated from each other in the chest cavity, with an important organ in between. 

What is the heart?

500

This mechanism allows for the movement of air into and out of the lungs.

What is ventilation?

500

This part of the respiratory system helps protect the airway by preventing food from entering the trachea when swallowing.

What is the epiglottis?

500

This condition, commonly caused by smoking, involves long-term lung damage and difficulty in exhaling air.

What is lung cancer?