What is function of the nasal turbinates (conchae)?

• Mucus production

• Mucus reabsorption

• Produce warm turbulent air

• Produce cool laminar air

Which letter represents the pleural cavity?

• A

• B

• C

• D

Which letter represents the visceral membrane?

• A

• B

• C

• D

What anatomical feature is the arrow pointing to?

• Left primary bronchus

• left secondary (lobar) bronchus

• Left tertiary (segmental) bronchus

• Left terminal (segmental) bronchus

Which cells of conducting airways make mucus?

• Ciliated columnar epithelial cells?

• Type I alveolar cells

• Type II alveolar cells

• Goblet cells

What is the function of elastic fibres in the respiratory system?

• Prevent over expansion during maximum inspiration

• Prevent over expansion during maximum expiration

• Absorb energy during expiration to allow passive inspiration

• Absorb energy during inspiration to allow passive expiration

Inspiration occurs when the

• Diaphragm contracts, volume increases and pressure decreases

• Diaphragm contracts, volume decreases and pressure increases

• Diaphragm relaxes, volume increases and pressure decreases

• Diaphragm relaxes, volume decreases and pressure increases

• Baroreceptors

• Proprioceptors

• Mechanoreceptors

• Chemoreceptors

Which respiratory group is responsible for normal breathing rhythm?

• Dorsal respiratory group (DRG)

• Ventral respiratory group (VRG)

• Pontine respiratory group

• Medulla oblongata

What is pulmonary surfactant?

• A phospholipid that increases surface tension

• A phospholipid that decreases surface tension

• A glycoprotein that increases surface tension

• A glycoprotein that decreases surface tension