Most researchers and medical professionals believe that MS is an immune-mediated disease. This means that the bodyâs immune system attacks healthy nerve tissue, which results in nerve damage that affects the whole body. Immune system activity seems to result in the inflammation responsible for many MS symptoms.
arm's-length transaction. Basis of determining fair market value (FMV) , it is a dealing between independent, unrelated, and well informed parties looking out for their individual interests. Transactions involving family members, and parent companies and subsidiaries, are deemed arm-in-arm dealings. To qualify as an arm's length transaction, neither of the involved parties may have any interest in the transaction's consequences to the other party.
Arm Span. Arm span measurement is a simple measure that is important in the anthropometrical profiling of athletes in many sports in which reach is important, such as rowing and basketball. See also the related arm length measure, which is the length of each individual arm. Measure from one furthermost finger tip to the other. 2  results: The arm length measures can be compared to the person's height. 3  On average, arm span should be about equal to height. 4  By subtracting a measurement for shoulder width from this measurement you can get a measure of average arm length.