nervous regulation

biology

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July 1, 2026

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The nervous system is a complex network of specialized cells, called neurons, that transmit electrochemical signals throughout the body. This system allows organisms to detect and respond to changes in their internal and external environments, enabling survival.1

Nervous regulation is typically characterized by quick, short-lived, and localized effects, distinguishing it from the slower, more prolonged, and widespread influence of endocrine regulation. However, these distinctions are not absolute, as specialized nerve cells called neurosecretory cells can produce neurohormones that function similarly to hormones.2

Neurotransmitters, such as acetylcholine and glutamate, are chemical agents released by neurons to transmit signals across synapses to other neurons, muscles, or glands. These signals can be excitatory or inhibitory, influencing the activity of the receiving cell. The nervous system is organized into diffuse and centralized types, with higher organisms possessing a centralized system including a brain and spinal cord.341

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nervous system
Stimulus-response coordination
…another integrative system called the nervous system. A nervous system can be defined as an organized group of cells, called neurons, specialized for the conduction of an impulse—an excited state—from a sensory receptor through a nerve network to an effector, the site at which the response occurs.
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…another integrative system called the nervous system. A nervous system can be defined as an organized group of cells, called neurons, specialized for the conduction of an impulse—an excited state—from a sensory receptor through a nerve network to an effector, the site at which the response occurs.
Read More