The Frank-Starling Law states that:

A) the more heart muscle is stretched, the harder it contracts (e.g. due to increased blood volume during preloading)
B) afterloading (e.g. hardening of the arteries) can increase the strength of heart contraction.


Answer: A) the more heart muscle is stretched, the harder it contracts (e.g. due to increased blood volume during preloading)

Anatomy & Physiology

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