Respiratory System

Front

What is the trachea?

Back

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

Front

What happens during pneumonia?

Back

During pneumonia, the alveoli fill with fluid, making it harder for the person to breathe.

Front

What is the function of the nasal cavity?

Back

The nasal cavity filters, warms, and moistens the air we breathe and is involved in the sense of smell.

Front

What is the role of the larynx?

Back

The larynx, or voice box, is responsible for producing sound and protecting the trachea against food aspiration.

Front

What are alveoli?

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 the correct order of air passage during breathing?

Back

Nostril, nasal cavity, pharynx, larynx, trachea, bronchus, bronchiole, alveolus.

Front

What is gas exchange?

Back

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

Front

What is the function of bronchi?

Back

The bronchi are the main passageways that direct air into the lungs, branching into smaller bronchioles.

Front

What is the diaphragm's role 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 the significance of oxygen in the respiratory system?

Back

Oxygen is essential for cellular respiration, providing energy for cells and supporting metabolic processes.