ATI Pathophysiology Practice Exam 2025 – All-in-One Guide to Master Your Exam Success!

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What is the role of neurotransmitters?

They store energy in the body

They transmit signals between nerve cells in the nervous system

Neurotransmitters are essential chemical messengers in the nervous system that facilitate communication between nerve cells, or neurons. They play a critical role in transmitting signals across synapses, which are the junctions between neurons. When a nerve impulse reaches the end of a neuron, neurotransmitters are released into the synaptic cleft and bind to receptors on the adjacent neuron, leading to the propagation of the signal.

This transmission is fundamental for various bodily functions, including muscle movement, sensory perception, regulation of mood, and cognitive processes. Therefore, the role of neurotransmitters in transmitting signals is central to the functioning of the nervous system. This function distinguishes them from other substances in the body, such as those involved in energy storage, muscle contraction, or nutrient absorption.

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They stimulate muscle contraction

They absorb nutrients from food

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