In Order to Maximize Diffusion Across the Surfaces of a Gill,oxygen-Rich

question 51

Multiple Choice

In order to maximize diffusion across the surfaces of a gill,oxygen-rich water flows in the opposite direction of oxygen-poor blood.This concept is called

• A)reverse expiration.
• B)pneumonectomy.
• C)countercurrent flow.
• D)partial pressure saturation.
• E)hemoglobin saturation shift.