How Is It Possible for the Tail of a Comet

question 18

Essay

How is it possible for the tail of a comet to actually move ahead of the comet itself?

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Definitions:

Posttraumatic Stress Disorder (PTSD)

A mental health condition triggered by experiencing or witnessing a terrifying event, characterized by flashbacks, nightmares, severe anxiety, and uncontrollable thoughts about the event.

Acetylcholine

Functioning as a key neurotransmitter, acetylcholine plays critical roles in the activation of muscle action, the workings of the parasympathetic nervous system, and cognitive function.

Second-messenger System

A mechanism by which neurotransmitters and hormones signal a cell to produce an internal signal in response to a message received at a cell receptor.

Ion Flow

The movement of ions across a membrane, critical for processes such as nerve signal transmission and muscle contraction.