A simple machine that magnifies force. Every lever has three parts: an axis (fulcrum), effort (force), and resistance (load or weight)
In the human body, the bones work as levers, the muscles produce force, and the joints serve as fulcrums in the production of movement.
Lever
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The patient is a 7-year-old female who experienced a sudden onset of coughing and expiratory wheezing about 20 minutes ago. She has no history of pulmonary or cardiovascular disease. She states that she was eating peanuts immediately before the onset of the symptoms and that she "almost choked on one." Auscultation of her chest reveals localized wheezing in the right lung field. She is MOST
likely suffering from: a. an acute asthma attack. b. anaphylaxis. c. aspiration of a foreign body into the lower airways. d. pneumonia.
Private fee-for-service (PFFS) plans are offered by private insurance companies in some regions of the country, and Medicare pays a pre-established amount of money each month to the insurance company, which decides how much it will pay for services. Such plans reimburse providers on a fee-for-service basis and are authorized to charge enrollees up to __________ percent of the plan's payment
schedule. a. 50 b. 80 c. 100 d. 115