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Showing posts with the label bone marrow

THINGS YOU DO NOT KNOW ABOUT BONES

Bone has been described as an engineering masterpiece of TENSILE, COMPRESSIVE AND ELASTIC strength The human skeleton consists of approximately 206 bones and 68 joints. The largest bone is the femur, or thighbone; the smallest is the stapes, a bone inside your ear. As skilled gymnasts clearly demonstrate, bones, muscles, cartilage, and joints can give a healthy body an astonishing degree of flexibility and range of movement. The thumb alone would convince anyone that the architect of our body [whoever that may be to each one of us]. Bones can also take an incredible pounding. They are constructed in exactly the same way that reinforced concrete is constructed. The steel of reinforced concrete provides the tensile strength, while the cement, sand, and rock provide the compressional strength. However, the compression strength of bone is greater than that of even the best reinforced concrete. We only wish we could mimic it” said Robert o. Ritchie, a professor of materials sci

IMPORTANT FACTS ABOUT RED BLOOD CELLS

                                                      The most common cell in your bloodstream gives blood its red color and is thus called a red blood cell. Just one drop of your blood contains hundreds of millions of such cells.   When viewed through a microscope, they look like doughnuts with a depressed center instead of a hole. Each cell is packed with hundreds of millions of hemoglobin molecules is, in turn, a beautiful spherical structure made of about 10,000 hydrogen, carbon, nitrogen, oxygen, and sulfur iron, which give the blood its oxygen-carrying ability.   Hemoglobin facilitates the transport of carbon dioxide from the tissues to the lungs, where it is exhaled.     Another vital part of your red blood cells is their skin, called a membrane. This marvelous covering enables the cell to stretch into thin shapes so as to pass through your tiniest blood vessels and thus sustain every part of your body.     Your red blood cells are manufactured in your