1 pts List the following events in order as they would occur inside a skeletal muscle fiber: 1) cross-bridge 2) action potential (AP) arrives at the motor end plate 3) AP travels down the t-tubule 4) calcium pumped into sarcoplasmic reticulum 5) opening of voltage-gated calcium channels O 2, 5, 4, 3, 1 O 5, 1, 2, 4, 3

14) after a muscle fiber has contracted, the calcium a) is secreted by the Golgi apparatus  b) is chemically bound to the myofilaments  c) renters the sarcoplasmic reticulum  d) is destroyed

Please help with the labeling of organization of skeletal muscle: Here's what  I found: fascicle muscle fibers nuclei sarcomere sarcolemma myofibril M line I band A band Z disc H zone Thick filament Thin filament perimysium sarcoplasmic reticulum epimysium

9. Explain the process that occurs to generate a muscle contraction. Name the four major stages and be able to describe the events that happen at each stage.