Respiratory System

Front

What is the name of the compound on red blood cells that carries oxygen?

Back

Hemoglobin is the protein in red blood cells that binds to oxygen and carries it from the lungs to the rest of the body.

Front

What happens to the diaphragm during inhalation?

Back

The diaphragm contracts, increasing the volume of the thoracic cavity and drawing air into the lungs.

Front

Which of the following is NOT a function of the respiratory system?

Back

Producing digestive enzymes is NOT a function of the respiratory system.

Front

What is the name of the muscle that moves the lungs?

Back

The diaphragm is the primary muscle responsible for the movement of the lungs during breathing.

Front

What structure contains the vocal cords?

Back

The larynx is the structure that houses the vocal cords and is involved in sound production.

Front

What is the primary function of the respiratory system?

Back

The primary function of the respiratory system is to facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

Front

What is the role of alveoli in the respiratory system?

Back

Alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide occurs.

Front

How does the respiratory system help regulate blood pH?

Back

The respiratory system helps regulate blood pH by controlling the levels of carbon dioxide in the blood, which affects acidity.

Front

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

Back

Air travels from the nose or mouth, through the pharynx, larynx, trachea, bronchi, and finally to the alveoli in the lungs.

Front

What is the difference between external and internal respiration?

Back

External respiration refers to the exchange of gases between the lungs and the blood, while internal respiration refers to the exchange of gases between the blood and body tissues.