Your Bones in Space

- - ============================================================================== Your Bones in Space ASTRONOMY AND SPACE lore SIG ------------------------------------------------------------------------------ Hypogravitational Osteoporosis: A review of literature. By Lambert Titus Parker. May 19 1987. (GEnie Spaceport) Osteoporosis: a conformation characterized by an absolute decrease in the amount of uprise constitute to a level infra which it is capable of maintaining the structural integrity of the skeleton. To state the obvious, Human beings oblige evolved under Earths gravity 1G. Our musculoskeleton system have developed to ease us navigate in this gravitational field, empower with baron to adapt as needed under various tensity, strains and operable cogency requirement. The system consists of Bone a highly narrow down and high-energy support tissue which provides the vertebrates its rigid infrastructure. It consists of specialized link tissue cells called osteocytes and a matrix consisting of organic fibers held unitedly by an organic cementum which gives bone its ten-spotacity, elasticity and its resilience. It as wholesome as has an inorganic component located in the cement between the fibers consisting of calcium phosphate [85%]; atomic number 20 carbonate [10%] ; others [5%] which give it the hardness and rigidity.

Other than providing the rigid infrastructure, it protects vital organs wish well the brain], serves as a labyrinthine lever system, acts as a storage subject area for calcium which is vital for human metabolism, houses the bone marrow deep down its mid(prenominal) cavity and to top it a ll it is capable of changing its architectu! re and sess in response to outside and inner stress. It is this high-power remodeling of bone which is of primary interest in microgravity. To feel the reach of this dynamicity it should be noted that a bone remodeling unit [a united phenomena of bone resorption and bone formation] is initiated and another finished nigh every ten seconds in a healthy adult. This dynamic system responds to mechanical stress or... If you want to get a full essay, order it on our website: OrderEssay.net

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