2: Anatomy of the Nervous System

Open Neuroscience Initiative · LibreTexts

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    From LibreTexts, under CC BY-NC 4.0, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    • 2.1: Introduction
      This page explains the importance of understanding the nervous system's structure and function, highlighting the roles of the central and peripheral nervous systems. It defines afferent and efferent signals in information transfer and provides an overview of major anatomical structures from the brain to nonnervous tissue. The text emphasizes the interconnectivity of components and their collective impact on neural health and functionality.
    • 2.2: Central nervous system (CNS)
      This page covers the central nervous system (CNS), emphasizing the brain and spinal cord's structure and function. The brain, weighing about 1.5 kg, is crucial for movement, thought, and consciousness, organized anatomically for precise location descriptions. The spinal cord facilitates communication between the brain and body, divided into regions that govern various functions.
    • 2.3: Peripheral nervous system (PNS)
      This page explains the Peripheral Nervous System (PNS) as a crucial link between the Central Nervous System (CNS) and the body, utilizing specific anatomical terminology for clarity. The PNS consists of three parts: the somatic nervous system for voluntary movements, the autonomic nervous system for involuntary internal functions (including sympathetic and parasympathetic systems), and the enteric nervous system for digestive regulation.
    • 2.4: Support structures of the nervous system
      This page delves into key non-neuronal structures supporting the nervous system, emphasizing brain circulation, cerebrospinal fluid (CSF), and the blood-brain barrier. It details stroke types, highlights hydrocephalus, and outlines treatment options like shunts. The meninges' protective role is discussed, along with meningitis as a serious inflammation. Increased intracranial pressure and symptoms resemble those of hydrocephalus.
    • 2.5: References

    This page titled 2: Anatomy of the Nervous System was last modified on Wed, 08 Jul 2026 03:24:19 GMT and is shared under a CC BY-NC 4.0 license and was authored, remixed, and/or curated by Austin Lim via source content that was edited to the style and standards of the LibreTexts platform.