If you file a consolidated Oregon return and have more than one affiliate doing business in Oregon or with Oregon-source income, you must complete Schedule AF and submit it with your return. Select a topic to get more tax information: 1  Corporation estimated tax.  Corporations with headquarters outside of Oregon.
All-or-none Response: Phenomenon in which a muscle fiber contracts completely when exposed to a threshold stimulus, or not at all. When a skeletal muscle is stimulated to contract by a motor neuron a minimum amount of stimulus is needed to start the process of muscle contraction.
The muscle fiber composition of a muscle reflects actual shifts in muscle fiber type on a fiber-by-fiber basis. Therefore, unlike muscle fiber area, muscle fiber composition is a relative measurement. When the proportion of one muscle fiber type increases, another must decrease in order to make room for it.