Respiratory System

What is the main function of the respiratory system?

• digest and break down food

• send and receive messages

• bring CO2 into the body and release O2

• Bring in O2 and release CO2

What part of the respiratory system is labeled number 3?

• Nose

• Larynx

• Pharynx

• Alveoli

How does the respiratory system deliver O2 to different parts of the body?

• Inspiration

• it enters your blood through the capillaries

• you breathe in CO2

• your trachea moves it into your lungs

Which of the following statements could be applied to “external respiration”?

• exchange of gases between alveolar air and the blood in pulmonary capillaries.

• exchange of dissolved gases between blood in tissue capillaries and the body tissues.

• the production of CO² from organic molecules in the cells by using O² .

• the inhalation of atmospheric air into the lungs followed by exhalation.

What term is applied to the volume of air that moves into the lungs while breathing at rest?

• Anatomical dead space

• Inspiratory reserve capacity

• Residual volume

• Tidal volume

What term is applied to the exchange of dissolved gases between capillary blood and body tissues?

• Internal respiration

• External respiration

• Ventilation

• Cellular respiration

Which structures comprise the lower respiratory tract?

• pharynx, larynx, trachea

• larynx, trachea, bronchi

• nose, pharynx, larynx

• trachea, bronchi, lungs

Which of the following lists the components of the respiratory membrane?

• alveolar epithelial cells, capillary endothelial cells and their basement membranes

• fluid and surfactant alveolar epithelial cells, capillary endothelial cells and their basement membranes

• visceral pleura, parietal pleura and serous fluid.

• ciliated epithelial cells, mucus cells and secreted mucus

To which of the following does the term “respiration” NOT apply?

• The conversion of carbon dioxide to bicarbonate ions for transport to the lungs

• The exchange of gases between alveolar air and capillary blood

• The derivation of energy from organic molecules in the cells

• The exchange of gases between capillary blood and body tissues

Which of these structures has no cartilage in it?

• Epiglottis

• Trachea

• Bronchi

• Alveoli