Saturday, February 15, 2020

Comparison of the Microscopic Structure of Compact Bone Assignment

Comparison of the Microscopic Structure of Compact Bone - Assignment Example Spongy bones are found on the heads of the long bones such as femur, humerus, radius, tibia, and fibula, and in between flat bones such as the skull, while the compact bone forms the external surface of all bones (Saladin 172). Anatomically, joints are connections between distinct joints. They exist so the bones are interconnected, and can be one skeletal system. They can exponentially increase the range of movement of our extremities, just like our knee, elbow, shoulder and metacarpal joints, or they can strengthen the structure of our body, just like our pubic symphysis and skull sutures. Hyaline cartilage and synovial fluid lubricate joints and make movement easier. Fibrocartilage makes the joints strong against compression and shock. The enlarged epiphysis of the bones it connects also provide strength (Saladin 172-173). Once the action potential reaches the motor nerve endings on muscle fibers, the nerve secretes acetylcholine, which initiates the influx of sodium ions into the muscle fiber, causing an action potential at the membrane. This potential travels along the muscle fiber membrane, and in the process depolarizing in the membrane. This then causes the sarcoplasmic reticulum to release large quantities of calcium ions, which initiate the binding of actin and myosin filaments that occurs during the contraction. After muscle contraction, calcium ions are returned back into the sarcoplasmic reticulum, causing muscle relaxation (Guyton and Hall 74). Upon receiving an impulse from the musculocutaneous nerve (Saladin 362), the biceps brachii (Saladin 328), exerts effort on the radius, with resistance contributed by the weight of the forearm or anything held in hand. Fulcrum is the elbow (Saladin 309).  

Sunday, February 2, 2020

Strategic Change Management Research Paper Example | Topics and Well Written Essays - 3750 words

Strategic Change Management - Research Paper Example The intention of this study is strategic management as one of the most important aspects of business behavior because it is goals-oriented management that ensures that the major goals and objectives of an organization are clearly outlined. Furthermore, such well-outlined goals are realistic, achievable and measurable. If an organization is managed strategically, steps that have already been taken to reach the goals are carefully evaluated to make sure that they have been carried out in the most efficient manner possible, and that they are in line with the overall goals of the company. Such strategic planning and, thus, business strategy is one of the key factors that can ensure organizational excellence. Strategic management, which starts with strategic planning, is to help companies in clarifying and arranging their goals and strategies, so that such goals are effective considering the available resources and existing business environment. It is especially important in situations wh en organizations have to introduce changes. Strategic change involves designing and controlling the process of shifting organizational vision, mission, objectives and strategy to new ones. In case a company has to introduce changes to its operations, the first thing to accomplish is to develop a strategy of further operations of the organization. This strategy will, then, be a basis for all strategic solutions and actions to be taken in order to implement change successfully. The company’s mission, objectives and goals are to be redefined in the first place in order for management to have a clear vision of what particular changes are to be implemented. Change is given the opportunity to occur when three elements are in place simultaneously: dissatisfaction with the present situation, a compelling vision of how the change will create a better future and first steps for reaching the vision. However, in order to understand how to manage change strategically and effectively, it i s important to understand the very process of change management. Carson’s change life cycle Carson and his colleagues (1999) present an explanatory model of change life cycle and outline several stages of the change management process. They are: invention, acceptance, disenchantment and decline. It is pointed out that invention and acceptance stages of Carson et al’s change life cycle model are the most important ones, because effective implementation of