Respiratory Flashcard

Front

What is the trachea?

Back

The trachea, also known as the windpipe, is a tube that connects the pharynx and larynx to the lungs, allowing air to pass through.

Front

What is the function of the diaphragm?

Back

The diaphragm is a dome-shaped muscle that separates the chest from the abdomen and plays a crucial role in breathing by contracting and relaxing to allow air in and out of 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 are bronchioles?

Back

Bronchioles are the smaller branches of the bronchi that lead to the alveoli, where gas exchange occurs.

Front

What is the role of alveoli in the respiratory system?

Back

Alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

Front

What is diffusion in the context of respiration?

Back

Diffusion is the process by which oxygen moves from an area of high concentration in the alveoli to an area of low concentration in the blood capillaries.

Front

What is the nasal cavity?

Back

The nasal cavity is the space behind the nose that filters, warms, and moistens the air we breathe before it enters the trachea.

Front

What is the epiglottis?

Back

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

Front

What is the role of mucus in the respiratory system?

Back

Mucus traps dust, pathogens, and other particles in the air, helping to keep the respiratory tract clean and free from infection.

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.