A pulmonologist is discussing the base of the lungs with staff.Which information should be included? At the base of the lungs:
A) Alveolar gas pressure exceeds arterial perfusion pressure.
B) Arterial perfusion pressure and alveolar gas pressure are less than at the apex.
C) Arterial perfusion pressure exceeds alveolar gas pressure.
D) Arterial perfusion and alveolar gas pressure are equal.

Question

Quizplus · Accepted Answer

In the base of the lungs,both arterial and venous pressures are greater than alveolar pressure,and blood flow is not affected by alveolar pressure.
In the base of the lungs,both arterial and venous pressures are greater than alveolar pressure,and blood flow is not affected by alveolar pressure.It is in the apex that alveolar pressure exceeds pulmonary arterial and venous pressures.
In the base of the lungs,both arterial and venous pressures are greater than alveolar pressure,and blood flow is not affected by alveolar pressure.It is in the apex that alveolar pressure exceeds pulmonary arterial and venous pressures.
In the base of the lungs,both arterial and venous pressures are greater than alveolar pressure,and blood flow is not affected by alveolar pressure.In zone II,also part of the apex,alveolar pressure is greater than venous pressure,but not arterial pressure.

A Pulmonologist Is Discussing the Base of the Lungs with Staff.Which