An Action Potential at One Point Along a Neuron's Membrane

question 98

Multiple Choice

An action potential at one point along a neuron's membrane ends when _______.

• A) sodium channels open and sodium enters the neuron
• B) sodium channels open and sodium exits the neuron
• C) potassium channels open and potassium enters the neuron
• D) potassium channels open and potassium exits the neuron
• E) sodium channels close and sodium is pumped out of the neuron

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Definitions:

Psychological Disorders

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Epigenetics

Scrutiny of the ways in which altering the expression of genes affects organisms, disregarding changes to the genetic code.

Medical Model

A theory of illness that suggests diseases are caused by identifiable physical factors and should be treated through medical intervention.

Disordered Grief

A prolonged or intense state of mourning and inability to cope with a loss, which can interfere significantly with regular functioning and overall well-being.