Front

What is the larynx?

Back

The larynx, also known as the voice box, is an organ in the respiratory system located in the throat. It plays a crucial role in breathing, producing sound, and protecting the trachea against food aspiration.

Front

What is the diaphragm?

Back

The diaphragm is a dome-shaped muscle located at the base of the chest cavity. It plays a key role in breathing by contracting and relaxing to help draw air into the lungs.

Front

How many lobes does the left lung have?

Back

The left lung has 2 lobes.

Front

What are red blood cells?

Back

Red blood cells are cells in the blood that carry oxygen from the lungs to the rest of the body and return carbon dioxide from the body back to the lungs.

Front

What are alveoli?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs. They allow oxygen to enter the blood and carbon dioxide to be removed from it.

Front

What is the function of the trachea?

Back

The trachea, or windpipe, is a tube that connects the larynx to the bronchi. It allows air to pass through to the lungs.

Front

What is the role of the pharynx in the respiratory system?

Back

The pharynx is a muscular tube that connects the nasal cavity and mouth to the larynx and esophagus. It plays a role in both the respiratory and digestive systems.

Front

What are bronchi?

Back

Bronchi are the two main branches of the trachea that lead into each lung. They further divide into smaller bronchioles.

Front

What are bronchioles?

Back

Bronchioles are the smaller branches of the bronchi that lead to the alveoli. They help distribute air throughout the lungs.

Front

What is gas exchange?

Back

Gas exchange is the process by which oxygen is taken into the body and carbon dioxide is expelled. This occurs in the alveoli of the lungs.