W8 P&P 2: Pathophysiology of the Respiratory System

What is the function of Pulmonary circulation?

• To transport oxygenated blood from the lungs to the rest of the body
• To regulate blood pressure in the body
• To aid in digestion of food
• Delivery of oxygen and nutrients to lung tissue

• filtration

Which of the following describes structural protection of the respiratory system?

• Hairs, turbinates, cilia (Trap and remove foreign particles)

• Intercostal muscles, ribs, skin (Injury)

• Mucosal lining

• Nose and airways (Irritant receptors; Trigger sneeze/cough reflex)

• Mucosa, macrophages (Phagocytosis)

Which of the following describes Warms and humidifies air in the respiratory system?

• Hairs, turbinates, cilia (Trap and remove foreign particles)

• Intercostal muscles, ribs, skin (Injury)

• Mucosal lining

• Nose and airways (Irritant receptors; Trigger sneeze/cough reflex)

• Mucosa, macrophages (Phagocytosis)

Which of the following describes structures that removes foreign particles from the respiratory system?

• Hairs, turbinates, cilia (Trap and remove foreign particles)

• Intercostal muscles, ribs, skin (Injury)

• Mucosal lining

• Nose and airways (Irritant receptors; Trigger sneeze/cough reflex)

• Mucosa, macrophages (Phagocytosis)

Which of the following describes immune response from the respiratory system?

• Hairs, turbinates, cilia (Trap and remove foreign particles)

• Intercostal muscles, ribs, skin (Injury)

• Mucosal lining

• Nose and airways (Irritant receptors; Trigger sneeze/cough reflex)

• Mucosa, macrophages (Phagocytosis)

Ventilation involves both

• acquiring oxygen (inspiration)

• purification and humidification of air
• heating and cooling of air
• circulation and filtration of air
• removing carbon dioxide (expiration) from the blood

during ventilation, _____ are directed by lung receptors

• air
• oxygen
• carbon dioxide
• Neuronal impulses

Answer explanation

Uses the intercostal muscles, diaphragm, and sternocleidomastoid muscles

Match the following

• rate & speed of involuntary respiration

• Medulla

• primary control center (i & e movements)

• Pons

• voluntary respiration

• Cerebral cortex

Answer explanation

Medulla: primary control center

• Inspiratory movements: active

• Acquiring oxygen

• High pressure to low pressure

• Diaphragm moves downward

• Expiratory movements: passive

• Remove carbon dioxide

• Diaphragm moves upward

• Lungs compress to increase pressure inside airways

The medulla is the primary control center for ventilation. which of the following describes inspiratory movements?

• active

• passive

• Acquiring oxygen

• High pressure to low pressure

• Diaphragm moves downward

The medulla is the primary control center for ventilation. which of the following describes Expiratory movements?

• active

• passive

• Remove carbon dioxide

• Diaphragm moves upward

• Lungs compress to increase pressure inside airways