WAEC - Biology (2013 - No. 10)
Which of the following statements is not correct about the mammalian heart?
Oxygenated blood enters the left auricle from the pilmonary vein
the walls of the ventricle are thicker than those of the auricle
blood passes from of blood into the right ventricle to the left auricle through the aorta
the tricuspid valve prevents the back flow of blood into the right auricle