Exploring the Respiratory System

Front

What is the primary function of the alveoli in the lungs?

Back

To facilitate gas exchange between air and blood

Front

Which muscle is primarily responsible for the process of inhalation?

Back

Diaphragm

Front

Describe the role of the diaphragm during inhalation.

Back

It contracts and moves downward, increasing thoracic volume.

Front

Identify the structure that serves as the main passageway for air to enter the lungs.

Back

Trachea

Front

Explain how oxygen is transported from the alveoli to the bloodstream.

Back

By diffusion across the alveolar and capillary walls

Front

What is the primary gas exchanged for oxygen in the lungs?

Back

Carbon dioxide

Front

Which part of the lung is directly involved in the gas exchange process?

Back

Alveoli

Front

How does the structure of alveoli facilitate efficient gas exchange?

Back

They have a large surface area and thin walls

Front

What happens to the diaphragm during exhalation?

Back

It relaxes and moves upward

Front

What best describes the mechanics of breathing?

Back

It involves the contraction and relaxation of the diaphragm and intercostal muscles.