A&P Respiratory Review

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 

• 1,2,3,4
• 2,3,1,4
• 2,1,3,4
• 4,2,3,1 

Given the following structures:
1. alveoli
2. bronchi
3. bronchioles
Which of the following is the correct order in which air would flow after inhalation? 

• 1,2,3
• 2,1,3
• 2,3,1
• 3,2,1

The actual gas exchange with the blood occurs in the 

• bronchi
• bronchioles
• alveoli
• ventricles

Which of the following is not a characteristic of human lungs?

• Both right and left lungs are composed of three lobes. 
• Bronchi divide to form bronchioles.
• Capillary supply is abundant to facilitate gas exchange with the blood.
• The alveoli are tiny air sacs arranged in clusters.  

Which body function is made possible by the fibrous bands stretched across the larynx?

• swallowing
• breathing
• diffusion
• speech

The movement of oxygen from the alveoli to the blood and from the blood to the tissues is due to the process of... 

• osmosis
• diffusion
• cytokinesis
• phagocytosis

The left lung has three lobes and the right lung has two. 

• True
• False

During inhalation, the diaphragm moves upward decreasing the volume of the thoracic cavity.

• True 
• False

When the diaphragm contracts...

• the volume of the thoracic cavity increases and the pressure decreases, causing air to rush into the lungs.
• the volume of the thoracic cavity decreases and the pressure increases causing air to rush out of the lungs. 

When the diaphragm relaxes...

• the volume of the thoracic cavity increases and the pressure decreases, causing air to rush into the lungs.
• the volume of the thoracic cavity decreases and the pressure increases causing air to rush out of the lungs.