Respiratory System

Front

What is the trachea?

Back

The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi, allowing air to pass into the lungs.

Front

Where does gas exchange occur in the lungs?

Back

Gas exchange occurs in the alveolar sacs, which are tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged.

Front

What is the carina in the respiratory system?

Back

The carina is the ridge at the base of the trachea where it splits into the left and right primary bronchi.

Front

What is Inspiratory Reserve Volume?

Back

Inspiratory Reserve Volume is the amount of air that can still be inhaled after a normal inhalation.

Front

How many lobes does the left lung have?

Back

The left lung has two lobes: the upper lobe and the lower lobe.

Front

How many lobes does the right lung have?

Back

The right lung has three lobes: the upper lobe, middle lobe, and lower lobe.

Front

What is the function of bronchioles?

Back

Bronchioles are small air passages that branch from the bronchi and lead to the alveoli, where gas exchange occurs.

Front

What is the role of the diaphragm in respiration?

Back

The diaphragm is a muscle that contracts and flattens to create a vacuum that pulls air into the lungs during inhalation.

Front

What is tidal volume?

Back

Tidal volume is the amount of air inhaled or exhaled during normal breathing.

Front

What is the purpose of the alveoli?

Back

Alveoli are tiny air sacs in the lungs that facilitate the exchange of oxygen and carbon dioxide between the air and blood.