Giraffes have natural pressure regulating valves in their jugular veins (which are an inch in diameter) which prevent the blood from rushing to their heads.
I like her. I like doctors that give all of the information and put it in perspective.
Paige Braddock and Jason McNamara
February 28, 2014
Uncle Kenny about 2 months ago
Giraffes have natural pressure regulating valves in their jugular veins (which are an inch in diameter) which prevent the blood from rushing to their heads.
P51Strega about 2 months ago
I like her. I like doctors that give all of the information and put it in perspective.