-The thin horizontal arrows in the figure above show that the ________.
A) warmer arterial blood can bypass the legs as needed, when the legs are too cold to function well
B) warmer venous blood transfers heat to the cooler arterial blood
C) warmer arterial blood transfers heat to the cooler venous blood
D) arterial blood is always cooler in the abdomen, compared to the temperature of the venous blood in the feet of the goose

Question

-The thin horizontal arrows in the figure above show that the ________.
A) warmer arterial blood can bypass the legs as needed, when the legs are too cold to function well 
B) warmer venous blood transfers heat to the cooler arterial blood 
C) warmer arterial blood transfers heat to the cooler venous blood 
D) arterial blood is always cooler in the abdomen, compared to the temperature of the venous blood in the feet of the goose

Quizplus · Accepted Answer

The thin horizontal arrows in the figure show that warmer arterial blood transfers heat to the cooler venous blood. This is known as the countercurrent exchange mechanism and is an efficient way for the animal to conserve heat in its extremities (such as the feet) when they are exposed to cold temperatures.

-The Thin Horizontal Arrows in the Figure Above Show That