Lower Respiratory System Quiz

The trachea is reinforced with:

• Smooth muscle

• Elastic cartilage

• C-shaped cartilage rings

• Bone

The respiratory membrane consists of:

• One layer of epithelial cells

• Two layers of epithelial cells and a fused basement membrane

• Only capillary endothelium

• Only alveolar epithelium

The pleural cavity is located between:

• The lungs and the heart

• The two lungs

• The visceral and parietal pleura

• The diaphragm and lungs

The right lung has how many lobes?

• 2

• 3

• 4

• 5

The respiratory zone includes all of the following EXCEPT:

• Alveolar ducts

• Alveoli

• Respiratory bronchioles

• Terminal bronchioles

How did you find the midterm?