Elbow Joint The elbow joint is a very complex hinge joint located between the distal end of the humerus in the upper region of the proximal ends of the ulna and radius. The elbow joint allows flexion and extension and rotation of the forearm and wrist. The range of motion of the elbow is limited due to the olecranon of the ulna so that elbow can only extend to 180 degrees. Like most synovial joints‚ a thin layer of articulating cartilage covers the ends of the bones to allow smooth movement.
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is getting dissected and the joint family concept is slowly becoming a vague concept. In earlier times‚ there use to be big families with lots of couples‚ in-laws and children. Such families although have their own critical consequences but the share of happiness was immense. It seems that the concept will soon become a pre historic norm. The working couples of the contemporary era prefer to stay alone and the availability of money due to inflow of cash on putting joint effort offer wings to their
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Spain‚ A failed industrial revolution? By the 1850s‚ Spain’s population was near 12‚500‚000 people; of which more than two thirds still worked and lived in the countryside. Meanwhile‚ the most powerful European countries like England or Germany were undergoing a series of political‚ economic and social changes known as the Industrial Revolution. This was propelled by their liberal ideas‚ engaged investors and ever-growing market. It created a new era in history‚ urban areas started to develop and
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Motorola is an American company with many "firsts" in the field of science and technology. It started in Chicago in 1928. Company founders Paul V. Galvin and Joseph Galvin created the brand name Motorola for the car radio – linking "motor" (for motorcar) with "ola" (which implied sound) 1928 Founding of Company Paul V. Galvin and his brother‚ Joseph Galvin‚ incorporated the Galvin Manufacturing Company in Chicago on Sept. 25‚ 1928. Galvin Manufacturing would later become Motorola
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At both the strategic and operational levels‚ all planning must demonstrate this balance by passing litmus tests for feasibility‚ acceptability‚ and suitability. Feasibility‚ the focus of this essay‚ is defined as‚ “the joint operation plan review criterion for assessing whether the assigned mission can be accomplished using available resources within the time contemplated by the plan.” Feasibility‚ as a test of means‚ is primarily the province of the military. The onus is on the military to
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Why Prohibition Failed Prohibition: Help or Harm? Prohibition damaged America Imagine this"¦ It’s 12:30 am in a dark New York City street during the 1920s. Everything is silent. Then a man walks around to the back of an old saloon‚ closed due to Prohibition. He knocks three times on the back door then mutters the words " Joe sent me". The door opens to the sound of ragtime music and people singing. The door shuts and it is silent again"¦ That was an example of just on of the 100‚000 "speak-easies"
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Muscle and joint actions both affect the performance of a discus-athlete. Various types of joint actions and muscular actions can take place once when the movement is executed by the athlete. As an example‚ a discus-thrower usually activates the horizontal abduction and the horizontal adduction during the preparation or execution phases of his/her throw. The ground contact of the discus-thrower is very important as it keeps the thrower’s center of gravity station within his/her strongest point of
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U.S. History--Presentation for 10/25/11 on “Eli Whitney and interchangeable parts” In the late 1700s‚ in addition to inventing the cotton gin‚ Eli Whitney also came up with the idea for interchangeable parts. This was the pre-manufacturing of machinery pieces that could be quickly assembled to make a functioning piece of equipment‚ such as a gun. Before Whitney‚ each gun had to be handcrafted‚ and each one was different in its assembly. This meant that it took a long time for them to be made or
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In the early 20th century‚ a cartel of Dutch and English rubber barons had a stranglehold on the vast majority of the world’s supply of rubber. At that time the sole source of rubber was the South American tree Hevea brasiliensis‚ whose sap is natural latex. In the 1870s a gaggle of entrepreneurial smugglers had secreted a stash of wild rubber tree seeds out of the Amazon rain forest‚ which they used to establish sprawling plantations in East Asia. These smothered the output of Brazil‚ causing their
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Slavery in the United States: Attempts at and Failure of Compromise The Path to Civil War Ms. Wallace • Sobrato High School Thursday‚ November 3‚ 2011 It all started at the Constitutional Convention The Three-Fifths Compromise Allowed southern states to count 3/5 of their slave populations for purposes of determining how many representatives they would receive in Congress. Since the number of electors a state receives in the electoral college is based on the number of members of Congress it has
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