Respiratory system

Front

What is the function of the epiglottis?

Back

The epiglottis is a flap of tissue that closes over the trachea during swallowing to prevent food from entering the airway.

Front

What process allows oxygen to move from the alveoli to the blood capillaries?

Back

Diffusion allows oxygen to move from an area of high concentration in the alveoli to an area of low concentration in the blood capillaries.

Front

What is the pharynx?

Back

The pharynx is a chamber located behind the nose and mouth that serves as a pathway for air to enter the trachea.

Front

What process allows carbon dioxide to move from the blood capillaries to the alveoli?

Back

Diffusion allows carbon dioxide to move from an area of high concentration in the capillaries to an area of low concentration in the alveoli.

Front

What is the trachea?

Back

The trachea, also known as the windpipe, is a tube that connects the larynx to the bronchi, allowing air to pass to and from the lungs.

Front

What is the role of the diaphragm in respiration?

Back

The diaphragm is a muscle that contracts and relaxes to help draw air into the lungs and push it out during breathing.

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 function of the larynx?

Back

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

Front

What are alveoli?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the blood and carbon dioxide to be removed.

Front

What is the significance of gas exchange in the respiratory system?

Back

Gas exchange is crucial for supplying oxygen to the body and removing carbon dioxide, a waste product of metabolism.