Practice Quiz

NREMT Advanced EMT Practice Test #3

Category - EMT-I/99

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What item below is unique to the cells of the heart?
  1. Conductivity
  2. Contractility
  3. Automaticity
  4. All of the above
Explanation
Answer - D - Conductivity, contractility, automaticity, and excitability are unique to the cells of the heart. Conductivity is the ability to propagate an electrical impulse from cell to cell. Automaticity is the ability to initiate its own impulse. Contractility is the ability to contract when stimulated. Excitability is the ability to respond to an impulse.
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