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.
To start with all skeletal muscles consist of three main fiber types. These fiber types are: 1) Slow twitch fibers- Responsible for the strength and endurance of a muscle. 2) Intermediate twitch fibers- Possess qualities of both slow and fast twitch fibers. 3) Fast twitch fibers- Responsible for the speed of muscular contraction.