Physiology · Cardiovascular System · Hard

Contractility

Meaning: The intrinsic ability of cardiac or skeletal muscle cells to shorten and generate force.

In practice: Adrenaline increases cardiac contractility, raising stroke volume during stress.

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Two questions on related physiology words.

Which word means: A liquid substance that circulates through the body, including blood, lymph, and CSF.

Which word means: Any stimulus or signal entering a physiological system to trigger a response.

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