Situation: You need to step up on a step to reach an object on a high shelf over your head. Your starting point should be anatomical position and your finishing point should be the position you are in once your hand has reached the object overhead.
(Part 1) Trace the nerve impulse, listing the “macroscopic” structures and steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up one step.
(Part 2) Include the steps involved in transmitting the impulse “microscopically” through an individual neuron, from one neuron to another, and then from the neuron to the muscle fiber.
(Part 3) Include in this the steps involved in the actual muscle fiber contraction – a.k.a. the Sliding filament theory.
(Part 4) Specify the movements, muscles, bones, and joints involved in stepping up on the step. Explain any and all movements individually across each joint involved specifying the actions involved (i.e. flexion, extension, etc.), the muscles causing such actions, the bones being pulled on by said muscles, the types of joints involved, and how these movements collectively relate to the overall scenario/movements in this application.
(Part 5) Next, specify the movements, muscles, bones, and joints involved in reaching up above your head to the object on the shelf. Again, explain any and all movements individually across each joint involved specifying the actions involved (i.e. flexion, extension, etc.), the muscles causing such actions, the bones being pulled on by said muscles, the types of joints involved, and how these movements collectively relate to the overall scenario/movements in this application..