Describe how your biceps muscle contracts in series at cellular &

Home Assignment #1

Describe how your biceps muscle contracts IN SERIES AT CELLULAR & MYOFIBER LEVELS when you drink a cup of coffee.

You should include the following concepts:

– How resting membrane potential is negatively charged in the cell

– Depolarization and Repolarization of the cells

– How neural signal (a motor neuron) is sending to skeletal muscular cells

Include the roles of:

– T-tubule

– SR

– Calcium ions

– thick/think filaments

– cross bridge

– power stroke

– ATP in muscle contraction

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