ashlynnanne1400 ashlynnanne1400

14-02-2019
Biology

contestada

Each skeletal muscle is a discrete organ made up of hundreds or thousands of muscle fibers. although muscle fibers predominate, substantial amounts of connective tissue, blood vessels, and nerve fibers are also present. what happens during muscle contraction?

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alyssadias alyssadias

18-02-2019

The sliding filament theory is how muscles contract at a molecular level :)

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