Name: EASTERN ILLINOIS UNIVERSITY Physical Education Department PED 4340 – Exercise Physiology Muscle Quiz This is a “take home” quiz. You may use your notes and textbook. Your answers are to be your own with no help from other people. Answers can be turned into in person or emailed to email@example.com. Due: Wednesday, September 10th by 12:00 p.m. 1. Explain what causes some motor neurons to be “fast” and others “slow”. 2. Define ‘motor unit’. 3. Explain the roles of ATP during muscle contraction. 4. Name the fiber type that is least resistant to fatigue. 5. Explain how muscle spindles work and what affect they have on a muscle.