Respiratory system

Front

What is the flap of tissue that closes when we eat to prevent food from entering the trachea?

Back

Epiglottis

Front

What is the dome-shaped sheet of muscle that separates the chest from the abdomen?

Back

Diaphragm

Front

In which part of the body is carbon dioxide in high concentration, leading to its movement by diffusion to the alveoli?

Back

Capillary

Front

What are the small air passages that branch from the bronchi and lead to the alveoli?

Back

Bronchioles

Front

What are the air sacs covered with capillaries where gas exchange takes place?

Back

Alveoli

Front

What is the main function of the respiratory system?

Back

To facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

Front

What is the pathway air takes from the nose to the lungs?

Back

Nose -> Pharynx -> Larynx -> Trachea -> Bronchi -> Bronchioles -> Alveoli

Front

What is the role of the diaphragm during inhalation?

Back

The diaphragm contracts and moves downward, increasing the volume of the thoracic cavity and allowing air to flow into the lungs.

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.

Front

What is the purpose of the larynx in the respiratory system?

Back

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