If your posterior fossa is too small, it may cause your brain to push against and down into your foramen magnum. But researchers don't know exactly why these differences happen during fetal ...

Foramen magnum: A large hole at the underside of the skull where the spinal cord enters the skull to attach to the brain. Gluteal tuberosity: Located on the back surface of the femur where part of ...

[1] Thereafter, flow velocity declines until the pressure in the ventricle falls below aortic pressure and the aortic valve closes, which is marked by the "dicrotic notch," or "incisura." ...

Actor Roger E. Mosley, who appeared in all eight seasons of the original Magnum P.I., has died aged 83. He portrayed Theodore "T.C." Calvin, the helicopter pilot and friend of Tom Selleck's character.