The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, the basic functional units of the muscle fiber. The sarcomere is responsible for the striated appearance of skeletal muscle, and forms the basic machinery necessary for muscle contraction.t is one of three major muscle types, the others being cardiac muscle and smooth muscle. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons. Skeletal muscle is made up of individual muscle cells or myocytes, known as muscle fibers.
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The companyâs checkersâa step up from a courtesy clerkâearn an average of $17.53 per hour, compared with $10.37 for grocery cashiers nationally. Store directors earn $98,500 per year on average, with potential for up to $15,000 in bonuses and overtime.Nationally, grocery store managers earn about $82,790. And any employee who works at least 22 hours a week is eligible for health insurance. The company pays 100% of premiums.ugget Market workers received between 40 and 140 hours of training last year. Because of that investment and its legacy, company executives take HR seriously. âWe hire the attitude,â CEO Eric Stille says.