Respiratory System Test

Front

What happens to the volume of the rib cage when the diaphragm contracts?

Back

The volume of the rib cage increases.

Front

What happens to the pressure in the thoracic cavity during inhalation?

Back

The pressure decreases.

Front

What is the primary function of the diaphragm in breathing?

Back

To contract and move downwards, allowing air to enter the lungs.

Front

What is the role of alveoli in the lungs?

Back

To facilitate the exchange of oxygen and carbon dioxide.

Front

What is the pathway of air from the nasal cavity to the lungs?

Back

Nasal cavity → trachea → bronchi → lungs.

Front

What is the function of the trachea?

Back

To transport air to and from the lungs.

Front

What occurs during exhalation in terms of diaphragm movement?

Back

The diaphragm relaxes and moves upwards.

Front

How does the contraction of the diaphragm affect lung volume?

Back

It increases lung volume, allowing air to flow in.

Front

What is the significance of the pressure gradient in breathing?

Back

Air moves from areas of higher pressure to areas of lower pressure.

Front

What is the difference between inhalation and exhalation?

Back

Inhalation is the intake of air, while exhalation is the expulsion of air.