1 Hydrogen is the most abundant element in the universe. 2  Hydrogen isn't common in a pure form on Earth, but is mostly found as part of water. 3  Hydrogen is the main fuel of stars and the only fuel for red dwarfs. 4  The whole universe is thought to have been formed by a Hydrogen nucleus.
Noun. 1. hindlimb-a posterior appendage such as a leg or the homologous structure in other animals. hind limb. hind leg-the back limb of a quadruped. limb-one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper. 1  Facebook.
The hindbrain controls body functions such as breathing and heart rate. The cerebellum, located in the hindbrain, plays a role in physical activity. The hindbrain is located in the lower, rear portion of the brain.The hindbrain is responsible for making a person's heart beat without him or he making it do so.View slideshow of images above.he cerebellum, located in the hindbrain, plays a role in physical activity. The hindbrain is located in the lower, rear portion of the brain. The hindbrain is responsible for making a person's heart beat without him or he making it do so. View slideshow of images above.