Ventilation and Gas Exchange Assignment | Essay Help Services

No citations needed, no formal format needed. Just full in-depth details please.Describe the physical properties of the lungs and how they relate to ventilation. Be sure to explain what elasticity and
compliance and relate these physical lung properties to specific aspects of ventilation. Explain they are important.
Explain what partial pressure is. List the partial pressures of O 2 and CO 2 in alveolar air and explain what determines
their values (discuss each gas separately). List the partial pressures of O 2 and CO 2 in systemic arterial blood and
explain what determines their values. List the partial pressures of O 2 and CO 2 in systemic venous blood and explain
what determines their values.
Define external respiration and explain the mechanism of external respiration (be sure to explain it in terms of partial
pressure) and describe the structure of the respiratory membrane and how its structure facilitates external respiration.
Which gas (O 2 or CO 2 ) is easier to exchange in the alveoli? Explain why.
Define internal respiration and explain the mechanism of internal respiration (be sure to explain it in terms of partial
pressure).
Describe how the central chemoreceptors act to regulate ventilation. Be sure to describe the integrating centers and
sensors involved, their locations, and explain their roles in determining ventilation rate. Be sure to include any
chemical equations (and enzymes!) that are necessary to explain ventilation regulation and explain how the
mechanisms work. Then explain how the system responds when arterial blood pH is elevated, and explain how the
response corrects arterial CO 2 . Explain how the system responds when arterial blood pH is decreased, and explain
how the response corrects arterial CO 2 .
Describe how the peripheral chemoreceptors act to regulate ventilation. Be sure to name the sensors involved, their
locations, and explain their roles. Be sure to include the molecules sensed, and any chemical equations (and
enzymes!) that are necessary to explain their roles. Then explain how and when the system acts to increase
ventilation. Explain how and when the system acts to decrease ventilation.