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Related Concept Videos

Organization of the Nervous System01:13

Organization of the Nervous System

The nervous system is one of the most complex systems in our body. It is organized into two main divisions: the central nervous system (CNS) and the peripheral nervous system (PNS).
The CNS, comprising the brain and spinal cord, houses billions of neurons. The brain is housed in the skull, while the spinal cord is linked to the brain through the foramen magnum of the occipital bone and is surrounded by the protective structure of the vertebral column. It is responsible for processing various...
What is a Nervous System?01:25

What is a Nervous System?

Overview
Nervous System01:21

Nervous System

The nervous system coordinates body functions through its complex network of nerve cells, enabling sensation and movement. It is divided into two primary parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is composed of the brain and the spinal cord. The brain acts as the body's control center, processing sensory information and coordinating responses. The spinal cord functions as a major signaling pathway for the brain and the rest of the body.
Extending...
Functions of the Nervous System01:18

Functions of the Nervous System

The nervous system is responsible for coordinating and regulating the body's functions. It functions through three main processes: sensory, integrative, and motor processes. Sensory function involves the detection and transmission of information about internal and external stimuli from sensory receptors to the CNS. The CNS processes this information through an integrative function, where it interprets and makes decisions based on the incoming sensory information. Finally, the motor function...
Functional Divisions of the Nervous System01:23

Functional Divisions of the Nervous System

The nervous system, responsible for sensing, integrating, and responding to various stimuli, is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The PNS has two functional divisions: the sensory or afferent division and the motor or efferent division.
The sensory division transmits information from sensory receptors in the body to the CNS. It provides the CNS with knowledge about somatic senses (such as tactile, thermal, pain, and proprioceptive sensations)...
Organization of the Brain01:31

Organization of the Brain

The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...

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Related Experiment Video

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Microdissection of Mouse Brain into Functionally and Anatomically Different Regions
08:06

Microdissection of Mouse Brain into Functionally and Anatomically Different Regions

Published on: February 15, 2021

[Structure and function of the central nervous system].

Agnieszka Zabłocka1, Maria Janusz

  • 1Instytut Immunologii i Terapii Doświadczalnej PAN im. L. Hirszfelda we Wrocławiu. zablocka@iitd.pan.wroc.pl

Postepy Higieny I Medycyny Doswiadczalnej (Online)
|August 8, 2007
PubMed
Summary

The central nervous system (CNS), comprising the brain and spinal cord, processes information using neurons and glial cells. Glial cells support neurons, but their unbalanced activation can lead to neurodegeneration.

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Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark
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Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark

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Last Updated: Jul 13, 2026

Microdissection of Mouse Brain into Functionally and Anatomically Different Regions
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Published on: February 15, 2021

Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark
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Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark

Published on: January 26, 2018

Area of Science:

  • Neuroscience
  • Cell Biology

Context:

  • The central nervous system (CNS) consists of the brain and spinal cord.
  • It is composed of neurons and various glial cells, including astrocytes, oligodendrocytes, and microglia.

Purpose:

  • To outline the fundamental components and functions of the CNS.
  • To describe the critical roles of glial cells in maintaining CNS health.
  • To highlight the link between glial cell dysfunction and neurodegenerative diseases.

Summary:

  • The CNS, comprising the brain and spinal cord, utilizes millions of neurons and glial cells for information processing, signal analysis, and motor control.
  • Glial cells are essential for forming the blood-brain barrier, providing neuronal support and nutrition, exerting antioxidant effects, and performing immune surveillance.
  • Dysregulation or overactivation of glial cells can disrupt CNS homeostasis, potentially leading to neurodegeneration.

Impact:

  • Provides a foundational understanding of CNS structure and function.
  • Emphasizes the crucial role of glial cells in neurological health.
  • Establishes a connection between glial cell activity and the pathogenesis of neurodegenerative disorders.