Final answer:
Factors like neuromodulators, receptor activation via hormones, and electrolyte levels can alter the RMP of electrically excitable cells.
Explanation:
The resting membrane potential (RMP) of an electrically excitable cell can be altered by various factors:
- Neuromodulators present in a synapse: These can impact the release of neurotransmitters that in turn affect the cell's RMP.
- Receptor activation via hormones: Activation of receptors can lead to changes in ion flow and membrane potential.
- Electrolyte levels in interstitial fluid: Changes in electrolyte levels can influence the balance of ions across the cell membrane, affecting the RMP.
These factors can impact the excitability of the cell by changing its RMP, leading to potential physiological responses.
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