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Related Concept Videos

Spinal Cord: Cross-sectional Anatomy01:16

Spinal Cord: Cross-sectional Anatomy

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The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
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The Spinal Cord01:54

The Spinal Cord

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The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
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Spinal Cord: Gross Anatomy01:15

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The spinal cord resides within the protective confines of the vertebral column. It is the main pathway for information traveling between the brain and the body. It plays a fundamental role in nearly all bodily functions, from simple reflexes to complex motor movements. The spinal cord begins at the medulla oblongata at the base of the brainstem and extends downward, terminating at the conus medullaris near the first and second lumbar vertebrae. The spinal cord's length in adults is...
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Spinal Cord01:26

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The spinal cord, a critical component of the central nervous system, extends from the base of the brainstem to the lumbar region of the vertebral column. It is essential for maintaining physical stability and facilitating communication between the brain and peripheral parts of the body.
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Spinal Nerves: Anatomy01:23

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Spinal nerves are pivotal conduits in the nervous system, bridging the central nervous system (CNS) with the peripheral nervous system (PNS). These nerves enable a complex communication network between the brain, spinal cord, and the rest of the body, facilitating sensory input, motor output, and autonomic functions.
There are 31 bilateral pairs of spinal nerves, each emerging from the spinal cord through the intervertebral foramina—openings between adjacent vertebrae. These nerves are...
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Spinal Cord: Information Processing01:10

Spinal Cord: Information Processing

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The spinal cord is an integral hub for motor and sensory information that enables the brain to communicate with the peripheral nervous system (PNS). This communication consists of relaying sensory data and transmission of motor commands.
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Spinal Cord Electrophysiology
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Spinal Cord Anatomy and Localization.

Todd A Hardy

    Continuum (Minneapolis, Minn.)
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    Summary
    This summary is machine-generated.

    This review highlights key teaching points for spinal anatomy and lesion localization in myelopathy. Advances in MRI and identifying specific antibodies aid in diagnosing conditions like transverse myelitis.

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    Area of Science:

    • Neuroscience
    • Neurology
    • Medical Education

    Background:

    • The spinal cord's organized neuroanatomy is crucial for sensory, motor, and autonomic functions.
    • Clinical acumen is vital for distinguishing spinal cord pathology from other neurological conditions.
    • Magnetic Resonance Imaging (MRI) has transformed spinal disorder investigations.

    Purpose of the Study:

    • To present clinically relevant teaching points for spinal anatomy.
    • To emphasize lesion localization strategies in myelopathy.
    • To integrate clinical examination findings with diagnostic tools.

    Main Methods:

    • Review of established principles in spinal cord lesion localization.
    • Discussion of advancements in MRI technology for spinal imaging.
    • Inclusion of newly discovered antibodies (e.g., aquaporin-4 IgG, MOG IgG) in myelopathy diagnosis.

    Main Results:

    • Effective localization of spinal cord lesions relies on integrating patient history and neurologic examination.
    • Improvements in MRI and antibody identification enhance diagnostic accuracy for transverse myelitis.
    • Clinical skills remain essential for assessing patients with myelopathy.

    Conclusions:

    • Understanding spinal neuroanatomy and localization principles is fundamental for diagnosing myelopathy.
    • Modern diagnostic tools complement, but do not replace, clinical expertise.
    • Accurate diagnosis of myelopathy requires a synthesis of clinical findings and advanced imaging/serologic tests.