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.
View Full Document. Review Sheet Results 1. Define the terms skeletal muscle fiber, motor unit, skeletal muscle twitch, electrical stimulus, and latent period. Your answer: Skeletal muscle fibers: a long cylindrical cell with multiple oval nuclei just beneath its sarcolemma. Motor unit: consists of a motor neuron and all of the muscle cells it stimulates.