What is the partial pressure of oxygen (pO_2) | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The partial pressure of oxygen $(pO_2)$ in the alveoli is approximately $104 \ mmHg$. In the deoxygenated blood arriving at the lungs via the pulm

Vedclass · Accepted Answer

Higher than in the blood

Vedclass · Answer

(D) The partial pressure of oxygen $(pO_2)$ in the alveoli is approximately $104 \ mmHg$. In the deoxygenated blood arriving at the lungs via the pulmonary arteries,the $pO_2$ is approximately $40 \ mmHg$. Since the partial pressure of oxygen in the alveoli $(104 \ mmHg)$ is significantly higher than the partial pressure of oxygen in the blood $(40 \ mmHg)$,oxygen diffuses from the alveoli into the blood. Therefore,the partial pressure of oxygen in the alveoli is higher than in the blood.

What is the partial pressure of oxygen $(pO_2)$ in the alveoli of the lungs compared to the blood?

Similar Questions

What is the main site of the human respiratory system where the exchange of gases occurs?

Amount of $CO_{2}$ in expired air is about (in $\%$)

Through which process is oxygen transported from the lungs to the tissues?

The given figure shows a small part of the human lung where gas exchange occurs. Identify the part $A, B, C,$ or $D$ correctly with its function from the given options.

The partial pressures (in $mm \ Hg$) of oxygen $(O_{2})$ and carbon dioxide $(CO_{2})$ at the alveoli (the site of diffusion) are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module