Recent Lessons

Show all results for ""

Gas Exchange in Human Anatomy

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the partial pressure of oxygen in the alveoli?

104 mm Hg (correct)
95 mm Hg
159 mm Hg
40 mm Hg

Which part of the body has the highest partial pressure of carbon dioxide?

Blood (Oxygenated)
Atmospheric Air
Alveoli
Tissues (correct)

What drives the diffusion of gases during exchange in the alveoli?

Pressure and concentration gradients (correct)
Electrochemical gradients
Volume changes
Temperature gradients

What is the partial pressure of oxygen in deoxygenated blood?

<p>40 mm Hg (B)</p> Signup and view all the answers

Which factor is NOT mentioned as influencing the rate of diffusion of gases?

<p>Gas density (B)</p> Signup and view all the answers

Flashcards

Partial Pressure of Oxygen (O2)

The pressure exerted by oxygen relative to the total pressure in a mixture (e.g., in air or blood).

Gas Exchange in Alveoli

O2 and CO2 move between the air in the alveoli and the blood

Diffusion in Respiration

Gases move from high to low pressure (or concentration).

Concentration Gradient (Respiration)

Difference in gas concentration between two areas.

Signup and view all the flashcards

Alveoli and Gas Exchange

The primary site of gas exchange between the air and blood.