38. How would the loss of acetylcholinesterase from the motor end plate affect skeletal muscle?A. It would cause muscles to stay relaxed.B. It would make the muscles less excitable.C. It would have little effect on skeletal musclesD. It would produce muscle weakness.E. It would cause muscles to stay contracted.39. A muscle producing almost peak tension during rapid cycles of contraction and relaxation is said to be inA. incomplete tetanus.B. wave summation.C. treppe.D. recruitment.E. complete tetanus.40. If a second stimulus arves before the relaxation phase has ended, a second, more powerful contraction occurs. This addition of one twitch to another is calledA. complete tetanus.B. treppe,C. recruitment.D. wave summation;E. incomplete tetanus.41. When a muscle is stimulated repeatedly at a high rate, the amount of tension gradually increases to a steady maximum tension. This state of maximum tension is calledA. wave summation.B. recruitment.C. incomplete tetanus.D. complete tetanus.E. a twitch.42. A weight-lifter strains to lift a heavy weight and there is no movement of the person's arms holding on to the weight. This type of contraction is called an)contraction,A. tetanusB. concentricC.isometricD. isotonicE. treppe43. You try to pick up an object and discover that it is much heavier than you expected. Which process must occ in the muscle to increase tension so you can pick up the object?A. isotonic contractionB. complete tetanusC. treppeD. recruitmentE. wave summation