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.
Chapter 11 Muscular Tissue Multiple Choice Questions 1. All muscle types will respond to an electrical stimulus because all muscle cells are _________. A. excitable B. contractile C. striated D. involuntary E. isometric 2. Skeletal muscle is called ___________, because it is usually subject to conscious control. A. excitable B. contractile C. striated D. voluntary E. isometric 3. When a skeletal muscle lengthens, its __________ helps resist excessive stretching and subsequent injury to the muscle. A. thick filaments B. collagen C. actin D. troponin-tropomyosin complex E. varicosities True / False Questions 4. Extensibility refers to the ability of a muscle to stretch.