Respiratory System

Front

What is the primary function of the respiratory system?

Back

To facilitate the exchange of oxygen and carbon dioxide between the body and the environment.

Front

What are the main structures of the respiratory system?

Back

Nasal cavity, pharynx, larynx, trachea, bronchi, lungs, and alveoli.

Front

What is the role of the alveoli in the respiratory system?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs; oxygen enters the blood and carbon dioxide is removed.

Front

What is diffusion in the context of the respiratory system?

Back

Diffusion is the process by which oxygen moves from the alveoli into the capillaries and carbon dioxide moves from the blood into the alveoli.

Front

What is the trachea and its function?

Back

The trachea, or windpipe, is a tube that connects the larynx to the bronchi, allowing air to pass to and from the lungs.

Front

What are bronchi?

Back

Bronchi are the two main branches of the trachea that lead into each lung, further dividing into smaller bronchioles.

Front

What is emphysema?

Back

Emphysema is a chronic respiratory disease characterized by the deterioration of alveoli, leading to reduced elasticity and difficulty in breathing.

Front

What is asthma?

Back

Asthma is a condition in which the airways become inflamed and narrowed, making it difficult to breathe.

Front

What is the role of capillaries in the respiratory system?

Back

Capillaries are tiny blood vessels that surround the alveoli, allowing for the exchange of gases between the blood and the air.

Front

How does oxygen transport occur in the blood?

Back

Oxygen binds to hemoglobin in red blood cells for transport from the lungs to the tissues.