A Frog Muscle Is Stimulated with an Electric Current, but the Muscle

question 55

Multiple Choice

A frog muscle is stimulated with an electric current, but the muscle doesn't twitch. This probably happens because ________.

• A) ionic balance has been restored
• B) the synapses are underactive
• C) the threshold of excitation was not reached
• D) the graded potential is too great

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Definitions:

Intrusion Errors

Memory mistakes in which elements that were not part of the original information get mixed into (“intrude” into) someone’s recall.

Recall

The act of retrieving information or memories from the past, often without the stimulus that initially encoded the memory.

Confusion

A state of bewilderment or uncertainty where a person has difficulty in understanding situations or making decisions.

Decay

The process of gradual deterioration or the breakdown of organic matter by the action of bacteria and enzymes, or, in terms of memory, the fading of information over time.