Respiratory Anatomy

Front

What is the diaphragm?

Back

The diaphragm is a dome-shaped muscle located under the rib cage that plays a crucial role in breathing by contracting and relaxing to help draw air into the lungs.

Front

Where is the diaphragm located?

Back

The diaphragm is located under the rib cage.

Front

What is the function of the epiglottis?

Back

The epiglottis is a flap of tissue that closes off the larynx during swallowing to prevent food and liquid from entering the airway.

Front

What happens during a spasm of the diaphragm?

Back

A spasm of the diaphragm causes hiccups.

Front

What is the correct order of air flow during inhalation?

Back

The correct order is: nasal cavity (2), pharynx (3), larynx (1), trachea (4).

Front

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

Back

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

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 expelled.

Front

What is the function of the lungs?

Back

The lungs are the primary organs of the respiratory system, responsible for the exchange of oxygen and carbon dioxide during breathing.

Front

What is the role of the nasal cavity in respiration?

Back

The nasal cavity filters, warms, and moistens the air we breathe before it enters the lungs.

Front

What is the pharynx?

Back

The pharynx is a muscular tube that connects the nasal cavity and mouth to the larynx and esophagus, playing a role in both respiration and digestion.