Physiology · Nervous System · Hard

Excitability

Meaning: The ability of a cell to respond to a stimulus by generating an action potential.

In practice: Increased excitability of motor neurons is seen in conditions like tetanus.

Quick check

Two questions on related physiology words.

Which word means: The muscular organ that pumps blood continuously around the circulatory system.

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

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