What question did this study set out to answer?

The research aims to understand how low intracellular calcium levels affect spike potentials in barnacle muscle fibers.

The Initiation of Spike Potential in Barnacle Muscle Fibers under Low Intracellular Ca++

View Full Paper

Ask AI

Bookmark

The research aims to understand how low intracellular calcium levels affect spike potentials in barnacle muscle fibers.
Studied electrical properties using intracellular electrode techniques.
Injected various calcium-binding agents to observe their effects on spike initiation.
Examined calcium influx with Ca(45) under controlled conditions.
Injection of Ca-binding agents enabled spike potential initiation with a membrane overshoot increase of up to 29 mV per tenfold increase in external Ca concentration.
Threshold membrane potential for spikes shifted positively with rising external calcium levels.
Substitution of sodium with barium or strontium restored the spike potential, demonstrating calcium's critical role.

No takes yet. Share an insight, caveat, or question.

Randomized trial demonstrates altered spike potential in barnacle muscle fibers due to calcium manipulation, indicating critical ion dependencies.

Hagiwara et al. (1964) studied this question.

View Full Paper

Ask AI

Bookmark

Randomized trial demonstrates altered spike potential in barnacle muscle fibers due to calcium manipulation, indicating critical ion dependencies.