1. Based on your knowledge of muscle physiology and the nature of motor units, how would the structure of muscles in your thigh differ from muscles controlling the movements of your eyeball (the extraocular muscle)?
2. Imagine holding a heavy object stationary in front of you with your arm fully extended at the elbow. Describe, at the level of a sarcomere in which actin/myosin interactions are taking place, how do you maintain this position? Because no movement is taking place, are you using ATP? If yes, explain you answer.
