Flashcard: Respiratory system

Front

Where are the sinuses located?

Back

In the skull surrounding the nasal cavity.

Front

What are the primary structural components of the nostrils, larynx, and trachea?

Back

Cartilage.

Front

Which system shares the pharynx with the respiratory system?

Back

Digestive system.

Front

What does the trachea branch off into?

Back

Bronchi.

Front

During which stage of breathing does the diaphragm enlarge the thoracic cavity?

Back

Inspiration.

Front

What is the primary function of the respiratory system?

Back

To facilitate gas exchange, primarily oxygen and carbon dioxide.

Front

What is the role of alveoli in the respiratory system?

Back

Alveoli are tiny air sacs where gas exchange occurs.

Front

What is the difference between internal and external respiration?

Back

Internal respiration refers to gas exchange at the cellular level, while external respiration refers to gas exchange between the lungs and the environment.

Front

What is the function of the diaphragm in respiration?

Back

The diaphragm contracts to create a vacuum that pulls air into the lungs.

Front

What is the pathway of air from the nostrils to the alveoli?

Back

Nostrils → Nasal cavity → Pharynx → Larynx → Trachea → Bronchi → Bronchioles → Alveoli.