Cardiovascular system allows humans to survive. It is an essential component to the very complicated machinery that guides the functioning of the human body. It is this reason that has led to numerous research projects in order to discover news ways of making the heart function better. By improving the heart, the remainder of the body will be able to better operate. It was with this exact purpose that research teams were able to come up with a way to regenerate cardiac muscle cells in order to reprogram the heart into making new cells and repairing itself. As explained in Scientific American (2012), the heart already has the capacity of regenerating itself, however, the regeneration process is an extremely low one, and is tremendously limited. The actual study conducted by Eulalio et al. (2012) and published in Nature (2012) provides the proof necessary to support the idea of cardiac cell regeneration and how the exact mechanisms could be sped up in order to have a better success rate. The regeneration of cardiac cells is essential to the prevention of further heart disease and eventual failure. As explained...
(2012), heart cells are only able to regenerate at a limited and slow pace. The speed of this regeneration is increased when a heart attack occurs, but only by a minute percentage. According to this knowledge, the researchers, Eulalio et al. (2012) wanted to figure out a way in which the speed of the process could be amplified in order to essentially heal the entire heart at a higher rate and with more precision. One of these ways is to reprogram the genetic process, more specifically, the microRNAs, in order to stimulate the regeneration process. Since heart failure is one of the main causes of natural fatalities in the world, this research has opened up the opportunity for a potential cure to diseases of the cardiovascular system.
Human Space Travel: Environmental and Health Effects Ever since people first looked up at the stars, mankind has wondered about going into space. What was up there? What would it be like? Was there life, looking back at them? Some of these questions have been answered by NASA and the space program, and some of the questions remain. However, it is no secret that space travel has effects on the human
E. hypertrophy). In the elderly, this process is reverse. Hence, the functional reserve capacities of the skeletal muscles decline with age, largely due to diminished levels of physical activity. As a result daily tasks once taken for granted become progressively more difficult, and eventually impossible, to perform. In illustration, a great deal of muscle force is required to simply stand up or to climb stairs. Therefore, skeletal system is relying
Overwintering Turtles and the Implications for Humans Avoiding Anoxia Oxygen is necessary for animal life, a truism that is so ingrained in experience and knowledge that few people stop to consider that many animals can go for significantly long periods of time without taking in oxygen. The freshwater turtle is a wonderful example of this adaptive physiology; it overwinters at the bottoms of lakes, and, to do so goes into a
Space Physiology Love Of Extremes: Space Physiology About the effect of gravity on the human being in space Early milestones in space exploration and space physiology Gravity The effects of microgravity on human physiology Physiological changes during a space flight The effects of microgravity on the human body The Vestibular System Orientation in space Space Adaptation Syndrome (SAS) and Space Motion Sickness (SMS) The effects of radiations on astronauts in space DNA damage mechanisms by radiations The biological effects of radiations Acute effects
The picture to the left depicts the various elements that are responsible for thermoregulation in human skin. The illustrations shows the various layers of skin along with the veins, arteries and capillaries of the circulatory system that assist in insuring that the thermoregulatory system works properly. The sweat glands are responsible for selectively removing materials from the blood the sweat glands then concentrates or alters these toxins, and secretes them
Congestive Heart Failure CHF Overview: As you know, Congestive Heart Failure (CHF) is one of the most common causes of death in the United States. The multifaceted causes and symptoms associated with CHF often leave the health care provider treating the symptoms rather than underlying causes, with near universal need to tailor care to each patient through a sometimes difficult process if elimination. The sometimes-idiosyncratic nature of epidemiology can also leave the
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