Respiratory System

Front

What is the primary function of the lungs?

Back

The primary function of the lungs is to exchange oxygen (O2) for carbon dioxide (CO2) during the process of respiration.

Front

What are cilia and their role in the respiratory system?

Back

Cilia are hair-like structures that line the respiratory tract and help remove dust and dirt from the air we breathe.

Front

What is the trachea and its significance?

Back

The trachea, also known as the windpipe, is an air tube that is held open by C-shaped rings of cartilage, allowing air to pass to and from the lungs.

Front

What are the main organs of the respiratory system?

Back

The main organs of the respiratory system are the lungs.

Front

What is the function of the pulmonary artery?

Back

The pulmonary artery carries oxygen-poor blood from the heart to the lungs for oxygenation.

Front

What is the role of the diaphragm in respiration?

Back

The diaphragm is a muscle that contracts and relaxes to help draw air into the lungs and push it out.

Front

What is gas exchange?

Back

Gas exchange is the process by which oxygen is taken into the body and carbon dioxide is expelled, occurring in the alveoli of the lungs.

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 function of the nasal cavity?

Back

The nasal cavity filters, warms, and moistens the air we breathe before it enters the lungs.

Front

What is the role of the bronchi?

Back

The bronchi are the main passageways that branch from the trachea into each lung, allowing air to flow into the lungs.