G10B: Respiratory System Flashcard

Front

What is the name of the serous membrane that covers the surface of each lung?

Back

Visceral pleura

Front

What do the cells of the human body require a constant supply of?

Back

Oxygen

Front

What supports the trachea?

Back

C-shaped rings of cartilage

Front

What is the primary function of the respiratory system?

Back

Exchanging respiratory gases between the blood and external environment

Front

What is the primary function of mucus in the ciliated mucosa?

Back

To trap dust, mold, and other contaminants

Front

What is the role of the diaphragm in respiration?

Back

The diaphragm contracts and flattens to allow air to enter the lungs.

Front

What is the difference between the parietal pleura and visceral pleura?

Back

The parietal pleura lines the thoracic cavity, while the visceral pleura covers the lungs.

Front

What is the process of gas exchange in the lungs called?

Back

External respiration.

Front

What is the significance of alveoli in the respiratory system?

Back

Alveoli are the sites of gas exchange, allowing oxygen to enter the blood and carbon dioxide to be expelled.

Front

What is the function of the epiglottis?

Back

The epiglottis prevents food from entering the trachea during swallowing.