Respiratory System Review

Name

Block

• Blk 1
• Blk 2

1. What is the primary function of the respiratory system?

• To work with the digestive system to absorb nutrients1
• To exchange respiratory gases between the blood and the external environment
• To pump oxygenated blood to the body's cells
• To produce mucus and other bodily fluids

2. As air enters the nasal cavity, what is the role of the cilia?

• To warm the incoming air
• To trap contaminants like dust and mold
• To divide the nasal cavity into two parts
• To push foreign particles toward the pharynx to be swallowed

3. Which flexible flap of cartilage prevents food from entering the airway by covering the larynx during swallowing?

• Trachea
• Pharynx
• Epiglottis
• Vocal fold

4. The structure also known as the "windpipe" that is supported by C-shaped rings of cartilage is the:

• Esophagus
• Larynx
• Trachea
• Bronchus

5. The larynx, or voice box, is primarily composed of:

• Spongy tissue
• Rigid cartilage
• Smooth muscle
• Ciliated mucosa

6. After passing through the trachea, air enters the right and left:

• Alveoli
• Pharynxes
• Pleural cavities
• Primary bronchi

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

• Parietal pleura
• Visceral pleura
• . Mediastinum
• Diaphragm

8. The tiny, thin-walled air sacs that are the primary site of gas exchange are called:

• Bronchioles
• Alveoli
• Cilia
• Lobes