Multiple ChoiceWhich region is the same length as the actin filament? An image is shown for reference.
Open QuestionMultiple ChoiceMore than one choice may apply.Compare these images of a relaxed skeletal muscle fiber and a fully contracted muscle fiber. Which would you see only in the relaxed fiber? a. Z discsb. Sarcomeresc. I bandsd. A bandse. H zones
Multiple ChoiceDuring a muscle contraction, the ___________ pulls on the ___________, shortening the muscle.