Negatively Charged Ions Are Not Permitted to Enter the Neuron

question 507

Multiple Choice

Negatively charged ions are not permitted to enter the neuron when it fires because the

• A) myelin sheath is not insulating the neuron.
• B) neuron is selectively permeable.
• C) neural signal is inhibitory.
• D) glial cells are not guiding the neural connection.

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Definitions:

Observational Study

Research methodology where the researcher observes subjects without manipulating any variables.

Experiment

A controlled procedure carried out to discover, demonstrate, or test a hypothesis, involving manipulation of variables to observe the effect on some phenomena.

Absent From Work

Not present at one's place of employment during scheduled working hours, for reasons such as illness, personal matters, or vacation.

Aerobic Exercise

Physical activity that improves the efficiency of the cardiovascular system in absorbing and transporting oxygen, typically performed at moderate intensity over extended periods.