Tuesday, August 5, 2014
Surfing For The Body Exhibit?
Sharon asks…Why is it necessary for the spermatic artery and vein to exhibit countercurrent properties?The spermatic artery and vein don't just traverse the same canal. They are so closely associated with one another that they exhibit countercurrent properties - not only do they run side by side through the inguinal canal, they also form a rate by which venous blood is warmed and arterial blood is cooled. Which brings us back to my question; Why is this necessary?Nancy answers:The testes are
